{"product_id":"audi-rsq8-sq8-sq7-400-cell-catted-downpipes-copy","title":"Audi RSQ8\/SQ8\/SQ7 400 Cell Catted Downpipes","description":"\u003ch1\u003e\u003cstrong\u003eAudi RSQ8 \/ SQ8 \/ SQ7 – EPA-Compliant 400 Cell Catted Downpipes\u003c\/strong\u003e\u003c\/h1\u003e\n\u003ch3\u003eUnlock the Full Potential of the 4.0T Twin-Turbo V8 • High-Flow • Compliant • \u003c\/h3\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eIntroducing Our NEW 400 Cell EPA-Compliant Downpipes for Audi 4.0T\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 4.0T twin-turbo V8 powering the Audi RSQ8, SQ8, and SQ7 delivers immense performance — but factory catalyst restrictions hold it back. Our \u003cstrong\u003eNEW EPA-compliant 400 cell high-flow catted downpipes\u003c\/strong\u003e are engineered to increase exhaust flow, enhance turbo efficiency, and dramatically sharpen the vehicle’s sound profile — all while maintaining emissions compliance standards.\u003c\/p\u003e\n\u003cp\u003eThis is the foundation of true 4.0T performance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eWhy Upgrade to 400 Cell?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEPA-Compliant 400 Cell High-Flow Catalysts:\u003c\/strong\u003e Increased exhaust velocity while maintaining compliance standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster Turbo Spool:\u003c\/strong\u003e Reduced backpressure improves throttle response and mid-range torque delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSharper Exhaust Note:\u003c\/strong\u003e Enhanced turbo acoustics with deeper low-end presence and more aggressive top-end tone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Performance Balance:\u003c\/strong\u003e Noticeable gains without compromising daily drivability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003ePerformance \u0026amp; Engineering\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Flow Architecture:\u003c\/strong\u003e Designed to reduce restriction while preserving catalyst efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel-Bent Tubing:\u003c\/strong\u003e Smooth internal transitions for maximum airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision TIG Welding:\u003c\/strong\u003e Built to withstand extreme exhaust temperatures and boost pressures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OEM Bolt-On Design:\u003c\/strong\u003e Utilizes factory mounting locations for straightforward installation.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEngineered to Pair Seamlessly with Valvetronic Titanium Exhaust Systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eSound Transformation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock Exhaust + Downpipes:\u003c\/strong\u003e Noticeably louder with stronger turbo character and deeper exhaust tone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValvetronic Exhaust + Downpipes:\u003c\/strong\u003e Maximum transformation — sharper transitions, increased aggression, and a true RS-inspired exhaust signature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eConstruction \u0026amp; Durability\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePremium high-grade stainless steel construction\u003c\/li\u003e\n\u003cli\u003eHigh-temperature resistant 400 cell catalyst cores\u003c\/li\u003e\n\u003cli\u003eOEM-style sensor placement for proper operation\u003c\/li\u003e\n\u003cli\u003eEngineered for long-term reliability under high boost\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eUnleash the true sound and performance of your Audi 4.0T — starting at the source.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e📩 Questions or ordering assistance? customerservice@valvetronic.com\u003c\/p\u003e","brand":"Valvetronic Designs","offers":[{"title":"Default Title","offer_id":52584408809759,"sku":"LAM.AUD.URUS.RSQ8.FF.400C.BR","price":3999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/5701\/0207\/files\/DSC08120_ShopifyCustomSize.jpg?v=1780089233","url":"https:\/\/redlinecarco.com\/products\/audi-rsq8-sq8-sq7-400-cell-catted-downpipes-copy","provider":"Redline Car Co.","version":"1.0","type":"link"}