{"title":"F97 X3M \u0026 F98 X4M","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cmeta charset=\"UTF-8\"\u003eBuild your BMW F97 X3M or F98 X4M with confidence. This collection features hand-picked upgrades chosen for exceptional fitment, quality, and real-world performance. Every product reflects the Automaz Collective philosophy—OEM+ styling and proven functionality.\u003c\/p\u003e","products":[{"product_id":"bmw-f97-x3m-f98-x4m-vanta-gold™-midpipe-yonristic-performance","title":"BMW F97 X3M \/ F98 X4M VANTA GOLD™ Midpipe - Yonristic Performance","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-15 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cem\u003e\u003cspan\u003ePlease note: checkout delivery estimates may display an earlier timeframe, however this product may require approximately 1–2 weeks for fulfillment and delivery.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eLooking to give your X3M or X4M an exotic supercar-inspired sound without replacing the entire exhaust system?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe factory exhaust system on the S58 is smooth — but it lacks the sharp, exotic character many enthusiasts want from the platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Yonristic VANTA GOLD™ Midpipe completely transforms the sound profile of the F97 X3M and F98 X4M while allowing you to retain the factory rear exhaust and OEM valve functionality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt the center of the system is the AURUM FLOW CORE™ — a 3D-printed convergence module paired with a full dual 3-inch architecture and two dedicated resonators to control exhaust pulse interaction, reduce unwanted resonance, and create a deep, tightly controlled exotic tone unlike traditional X-pipe systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eExotic.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRefined.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eEngineered.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhy this Exhaust System\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis isn’t just another loud X3M or X4M midpipe.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe VANTA GOLD™ was engineered around sound quality and flow behavior — not simply increasing volume.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe factory mid-section is replaced with a larger \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual 3-inch configuration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, increasing flow capacity over the approximately 2.75-inch factory layout and providing additional headroom for tuned and higher-output S58 applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRather than simply increasing pipe diameter, the complete midpipe is engineered as an acoustic system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt its center is the proprietary \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAURUM FLOW CORE™\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike a conventional fabricated X-pipe, the Flow Core uses advanced 3D-printed internal geometry to progressively control how exhaust pulses from both banks converge and interact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe purpose is to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etighten and structure the sound\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs RPM and exhaust velocity increase, traditional open crossover designs can introduce metallic rasp and scattered harmonics. The AURUM FLOW CORE™ helps keep the exhaust note cohesive and controlled, allowing the desirable frequencies of the S58 to develop without the harsh breakup commonly associated with more aggressive exhaust setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDeep and substantial at idle.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFull and aggressive through the mid-range.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eClean and exotic at high RPM.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor the F97\/F98 platform, the Flow Core is paired with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etwo dedicated resonators\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e positioned downstream.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhile the AURUM FLOW CORE™ manages exhaust pulse interaction and higher-frequency sound structure, the resonators target lower-frequency air rattle, harshness, and unwanted resonance during low-RPM driving and changes in engine load.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTogether, they allow the VANTA GOLD™ Midpipe to remain deeper and more refined during everyday driving while producing the sharper, cleaner, and more exotic high-RPM sound associated with VANTA GOLD™.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe AURUM FLOW CORE™ is finished in the signature VANTA GOLD™ heat-resistant ceramic coating, providing additional thermal protection while giving the system its unmistakable visual identity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBest of all, the factory X3M\/X4M rear exhaust remains in place.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOEM valve functionality is retained, allowing the factory rear muffler to continue providing refinement with the valves closed while letting significantly more of the S58's natural character come through when the valves open.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is an ideal setup for enthusiasts who want the core VANTA GOLD™ sound and flow technology without replacing the complete factory exhaust.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSound Characteristics\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Deep and substantial at idle and low RPM\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Reduced low-frequency harshness and air rattle\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Aggressive, fuller mid-range tone\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Clean and exotic high-RPM sound signature\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Refined cruising behavior with factory valves closed\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Tight, controlled exhaust note under load\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003ePerformance Expectations\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBy replacing the factory mid-section with a full \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual 3-inch architecture\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the VANTA GOLD™ Midpipe increases exhaust flow capacity and reduces downstream restriction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOn factory-power vehicles, the primary benefits are improved sound, response, and reduced restriction. On tuned and higher-output S58 builds, the larger piping provides additional exhaust flow headroom as boost and power increase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Overview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Replaces the factory center exhaust section\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Full dual 3-inch architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Retains factory X3M \/ X4M axle-back\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• OEM valve functionality retained\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Professional installation recommended\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBMW F97 \/ F98 Platform:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• F97 X3M\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• F97 X3M Competition\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• F98 X4M\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• F98 X4M Competition\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eS58 3.0L Twin-Turbo Inline-6 engine platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Precision formed and TIG-welded construction\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Full dual 3-inch exhaust architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• AURUM FLOW CORE™ convergence module\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Advanced 3D-printed internal crossover architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Signature VANTA GOLD™ heat-resistant ceramic coating\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Dual dedicated resonators\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Engineered pulse interaction and harmonic stabilization\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat’s Included\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Yonristic VANTA GOLD™ Midpipe\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• AURUM FLOW CORE™ Center Section\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Dual Resonators\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Required Hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eAutomaz Approved\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYou don't have to replace the entire exhaust system to completely change the character of the X3M or X4M.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThat's what makes the VANTA GOLD™ Midpipe such an interesting option.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe combination of the AURUM FLOW CORE™, full dual 3-inch piping, and dedicated resonators addresses both sides of what makes a good S58 exhaust — increasing flow and aggression while keeping unwanted rasp, harshness, and resonance under control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhat makes this setup especially appealing is that you can retain the factory BMW axle-back and OEM valve functionality. With the valves closed, you still have the refinement of the factory rear muffler. Open them up, and significantly more of the VANTA GOLD™ character comes through.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor enthusiasts who want a deeper low end, a more aggressive mid-range, and a cleaner, more exotic sound as the S58 climbs through the RPM range — without committing to a complete cat-back system — this is one of the most unique midpipe options available for the F97 X3M and F98 X4M.\u003c\/span\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Xa33tMG_Wik?si=TEI-zgVcJWR6Po7e\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Yonristic Performance","offers":[{"title":"Midpipe Only \/ AISI304 Stainless Steel","offer_id":44025662111803,"sku":"YR-8149-BMW-CAT","price":1899.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe Only \/ 4AL-6V Titanium","offer_id":44025662144571,"sku":"YR-7842-BMW-CAT","price":2599.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe + Free Flow Downpipe \/ AISI304 Stainless Steel","offer_id":44025662177339,"sku":"YR-2983-BMW-CAT","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe + Free Flow Downpipe \/ 4AL-6V Titanium","offer_id":44025662210107,"sku":"YR-0220-BMW-CAT","price":2999.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe + High Flow Downpipe (200 Cell) \/ AISI304 Stainless Steel","offer_id":44025662242875,"sku":"YR-5806-BMW-CAT","price":2599.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe + High Flow Downpipe (200 Cell) \/ 4AL-6V Titanium","offer_id":44025662275643,"sku":"YR-4645-BMW-CAT","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe + High Flow Downpipe (400 Cell) \/ AISI304 Stainless Steel","offer_id":44025662308411,"sku":"YR-3833-BMW-CAT","price":2799.0,"currency_code":"USD","in_stock":true},{"title":"Midpipe + High Flow Downpipe (400 Cell) \/ 4AL-6V Titanium","offer_id":44025662341179,"sku":"YR-5297-BMW-CAT","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/5388\/1403\/files\/54_0dc20685-99e8-40bd-b7bf-dff9aad33530.jpg?v=1787336503"},{"product_id":"bmw-f97-x3m-f98-x4m-vanta-gold™-exhaust-system-yonristic-performance","title":"Yonristic Performance VANTA GOLD™ Exhaust System – BMW X3M \/ X4M (F97\/F98)","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cem\u003e\u003cspan\u003ePlease note: checkout delivery estimates may display an earlier timeframe, however this product may require approximately 1–2 weeks for fulfillment and delivery.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eLooking to give your X3M or X4M an exotic supercar-inspired sound without sacrificing refinement?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe factory exhaust system on the S58 is smooth — but it lacks the sharp, exotic character many enthusiasts want from the platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Yonristic VANTA GOLD™ Exhaust System completely transforms the sound profile of the F97 X3M and F98 X4M using one of the most unique exhaust architectures currently available for the platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt the center of the system is the AURUM FLOW CORE™ — a 3D-printed convergence module paired with a full dual 3-inch exhaust architecture, dual resonators, and a completely redesigned X-pipe axle-back to increase flow while maintaining a deep, tightly controlled exotic tone.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eExotic.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRefined.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eEngineered.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhy this Exhaust System\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis isn’t just another loud X3M or X4M exhaust.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe VANTA GOLD™ was engineered around sound quality and flow behavior — not simply increasing volume.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike the G8X platform, the longer exhaust path and different underbody architecture of the X3M and X4M required a completely different approach to pipe diameter, resonance control, and rear-section design.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe system utilizes a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efull dual 3-inch architecture\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, increasing the main exhaust diameter from the factory approximately 2.75-inch layout. This larger cross-section reduces restriction and provides significantly greater flow capacity for both factory-power vehicles and higher-output S58 builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt the center of the system is the proprietary \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAURUM FLOW CORE™\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike a traditional fabricated X-pipe, its advanced 3D-printed internal geometry progressively manages exhaust pulse interaction, pressure balance, and harmonic behavior between both banks as exhaust velocity increases.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe result is a system designed to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehold the sound together\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e as the S58 moves through the rev range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDeep and substantial at idle.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFull and aggressive through the mid-range.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eClean and exotic at high RPM.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOne of the standout characteristics of the X3M\/X4M system is the addition of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual dedicated resonators downstream of the AURUM FLOW CORE™\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRather than simply quieting the exhaust, these resonators specifically target the lower-frequency resonance, air rattle, and harshness that can occur at low engine speeds. Working together with the Flow Core, they allow the exhaust to remain deep and composed down low while opening acoustically as RPM increases.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe rear section has also been completely redesigned.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eInstead of terminating into a conventional large rear muffler, the VANTA GOLD™ axle-back incorporates a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esecondary X-pipe before the quad outlets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. This creates another controlled interaction point between both exhaust paths, helping produce a smoother, more unified exhaust note from all four outlets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe signature gold heat-resistant coated AURUM FLOW CORE™ provides additional thermal protection while giving the system its unmistakable VANTA GOLD™ visual identity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOEM valve integration remains fully functional, allowing the vehicle to retain comfortable cruising manners with the valves closed while delivering the full dual 3-inch VANTA GOLD™ character when opened.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is a system built for enthusiasts who want something more exotic and technical than a traditional cat-back setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSound Characteristics\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Deep and substantial at idle and low RPM\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Reduced low-frequency harshness and air rattle\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Aggressive, smooth mid-range tone\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Clean and exotic high-RPM sound signature\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Refined cruising behavior with valves closed\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Tight, controlled exhaust note under load\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003ePerformance Expectations\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBy increasing the factory approximately 2.75-inch exhaust architecture to a full dual 3-inch system, the VANTA GOLD™ reduces downstream restriction and provides substantially greater flow capacity for both stock and modified S58 applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eEstimated Gains (Cat-Back Configuration):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• +8–15 HP\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• +10–25 lb-ft Torque\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cem\u003e\u003cspan\u003ePerformance figures are estimated planning ranges and are not guaranteed dyno results. Actual gains may vary depending on vehicle configuration, modifications, fuel, ECU calibration, environmental conditions, and testing methodology.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Overview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Direct bolt-on installation\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Full dual 3-inch exhaust architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Utilizes factory mounting locations\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• OEM valve functionality retained\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Compatible with Yonristic Performance remote valve control\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Professional installation recommended\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBMW F97 \/ F98 Platform:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• F97 X3M\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• F97 X3M Competition\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• F98 X4M\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• F98 X4M Competition\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eS58 engine platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eConstruction\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Precision formed and TIG-welded construction\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Full dual 3-inch exhaust architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Proprietary AURUM FLOW CORE™ convergence module\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Advanced 3D-printed Flow Core architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Signature VANTA GOLD™ heat-resistant coating\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Dual inline resonators\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Performance X-pipe axle-back architecture\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Valved cat-back exhaust design\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Engineered pulse interaction and resonance control\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e⸻\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat’s Included\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e• Yonristic VANTA GOLD™ Exhaust System\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Integrated Valved X-Pipe Rear Section\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• AURUM FLOW CORE™ Center Section\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Dual Resonators\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e• Required Hardware\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eAutomaz Approved\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThere are plenty of loud exhausts available for the X3M and X4M — but very few that actually focus on creating a more exotic S58 sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe VANTA GOLD™ stands out because the entire system has been engineered around sound quality, flow control, and refinement rather than just raw volume.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhat makes the F97\/F98 setup particularly unique is how Yonristic approached the longer exhaust architecture of the X3M and X4M. The combination of the AURUM FLOW CORE™, dual resonators, full dual 3-inch piping, and secondary rear X-pipe gives the system multiple stages of exhaust interaction and resonance control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe result is a deeper and more substantial sound down low that progressively transforms into the sharp, exotic VANTA GOLD™ character as RPM increases — without allowing the S58 to become metallic or uncontrolled at the top of the rev range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor enthusiasts looking for something more unique and engineered differently than the typical X-pipe or traditional muffler-based exhaust setup, this is one of the most interesting systems currently available for the F97 X3M and F98 X4M.\u003c\/span\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/Xa33tMG_Wik?si=TEI-zgVcJWR6Po7e\" width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Chrome","offer_id":44025662373947,"sku":"YR-3510-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Gold","offer_id":44025662406715,"sku":"YR-4472-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Black","offer_id":44025662439483,"sku":"YR-1835-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ AISI304 Stainless Steel \/ (4) Carbon Fiber","offer_id":44025662472251,"sku":"YR-7849-BMW-CAT","price":3599.0,"currency_code":"USD","in_stock":true},{"title":"Catback System \/ 4AL-6V Titanium \/ (4) 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