{"title":"Cat-Back Exhaust for 2021 Audi S5","description":"\u003cp\u003eShop 3 cat-back exhaust systems that fit the 2021 Audi S5 from MBRP and APR. Every part shows its real ship date and California status, orders over $100 ship free in the lower 48, and you can hear real sound clips before you buy.\u003c\/p\u003e","products":[{"product_id":"apr-18-25-audi-s4-s5-b9-catback-exhaust-system","title":"APR 18-25 Audi S4\/S5 (B9) Catback Exhaust System","description":"\u003cp\u003eThe APR Catback Exhaust System for the Audi B9 S4 and S5 is a complete, high-performance exhaust solution that runs the entire length of the vehicle from the catalyst back. Inspired by the larger center-pipe design of the higher-output RS4 and RS5 models, this system is engineered to boost performance, elevate sound, and enhance aesthetics with customizable exhaust tips that are sure to make a statement. Crafted from premium materials and built with advanced manufacturing techniques, this system is designed to withstand harsh conditions and deliver lasting performance. Expect a bold, aggressive growl at wide-open throttle, along with an impressive gain of 10 horsepower and 12 FT-LBS of torque to all four wheels!\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSmooth transitions and straight-through components maximize performance by reducing restrictions.\u003c\/li\u003e\n\u003cli\u003eRemovable quad 3.5” motorsport-style polished tips with APR logo; optional styles available.\u003c\/li\u003e\n\u003cli\u003eComplete catalyst-back system including downpipes, extending from the factory catalyst back.\u003c\/li\u003e\n\u003cli\u003eMandrel-bent brushed piping paired with electropolished cast splitters for a refined finish.\u003c\/li\u003e\n\u003cli\u003ePrecision brackets and slip clamps ensure accurate alignment and hassle-free installation.\u003c\/li\u003e\n\u003cli\u003ePremium T304 stainless steel construction with TIG welding for strength and durability.\u003c\/li\u003e\n\u003cli\u003eOptimized flow through dual 2.5” downpipes, 2.75” midpipes, and a 3.5” midpipe.\u003c\/li\u003e\n\u003cli\u003eStrikes the perfect balance of power, sound, style, and quality for enthusiasts.\u003c\/li\u003e\n\u003cli\u003ePerformance gains of 10 HP and 12 FT-LBS of torque delivered to all four wheels.\u003c\/li\u003e\n\u003cli\u003eValve-controlled rear mufflers dynamically adjust sound based on driving style.\u003c\/li\u003e\n\u003cli\u003eIntegrated Helmholtz resonator minimizes drone and enhances sound quality.\u003c\/li\u003e\n\u003cli\u003eIncludes an upgraded tunnel brace to accommodate the larger piping.\u003c\/li\u003e\n\u003cli\u003eFully emissions compliant for worry-free operation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":67746810364056,"sku":"APRCBK0012","price":2149.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/8567\/1064\/files\/f80e8b2848bfde50e3dd84eb32e71bdfL_4fa17f64-dd32-4ec2-a550-b3d141cefb3c.jpg?v=1792285419"},{"product_id":"mbrp-18-21-audi-s5-coupe-s4-sedan-t304-ss-2-5in-cat-back-quad-rear-exit-exhaust-ss-tips","title":"MBRP 18-21 Audi S5 Coupe\/S4 Sedan T304 SS 2.5in Cat-Back Quad Rear Exit Exhaust - SS Tips","description":"\u003cp\u003eTHE ONLY EXHAUST YOU\"LL EVER NEED - MBRP Armor Pro Series exhaust systems are backed by a Lifetime Warranty and crafted out of T304 Stainless Steel - the most durable material grade that money can buy.\u003c\/p\u003e\n\u003cp\u003eThe T304 Stainless Steel tubing is easy to clean and maintain. It’s the obvious choice for you if you operate your vehicle in extreme conditions. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable T304 Stainless Steel Construction. Bolt-on Installation. Moderate Sound. Flow Increase of 24%. Fits with Sport Differential. Eliminates Exhaust Valves with Electronic Valve Simulators. MBRP Signature Styling and Sound.\u003c\/li\u003e\n\u003cli\u003eImproved Torque And Horsepower\u003c\/li\u003e\n\u003cli\u003eLower Exhaust Gas Temperatures\u003c\/li\u003e\n\u003cli\u003eIncreased Throttle Response\u003c\/li\u003e\n\u003cli\u003eUtilizes OEM Hangers\u003c\/li\u003e\n\u003cli\u003eBolt On Design\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MBRP","offers":[{"title":"Default Title","offer_id":67905952645272,"sku":"MBRPS4607304","price":1334.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/8567\/1064\/files\/72a0de7814893a70684466873b22ab25.jpg?v=1794311952"},{"product_id":"mbrp-18-21-audi-s5-coupe-s4-sedan-t304-ss-2-5in-cat-back-quad-rear-exit-exhaust-carbon-fiber-tips","title":"MBRP 18-21 Audi S5 Coupe\/S4 Sedan T304 SS 2.5in Cat-Back Quad Rear Exit Exhaust - Carbon Fiber Tips","description":"\u003cp\u003eTHE ONLY EXHAUST YOU\"LL EVER NEED - MBRP Armor Pro Series exhaust systems are backed by a Lifetime Warranty and crafted out of T304 Stainless Steel - the most durable material grade that money can buy.\u003c\/p\u003e\n\u003cp\u003eThe T304 Stainless Steel tubing is easy to clean and maintain. It’s the obvious choice for you if you operate your vehicle in extreme conditions. All of the tubing is mandrel bent for maximum exhaust flow. Mandrel bending ensures no rippling in the bends. The end result is that it gives you more fresh air inside your engine’s cylinders, allowing it to produce more power and improve vehicle performance and longevity. MBRP, Stand out from the crowd with a performance exhaust system that sounds great.\u003c\/p\u003e\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDurable T304 Stainless Steel Construction. Bolt-on Installation. Moderate Sound. Flow Increase of 24%. Fits with Sport Differential. Eliminates Exhaust Valves with Electronic Valve Simulators. MBRP Signature Styling and Sound.\u003c\/li\u003e\n\u003cli\u003eImproved Torque And Horsepower\u003c\/li\u003e\n\u003cli\u003eLower Exhaust Gas Temperatures\u003c\/li\u003e\n\u003cli\u003eIncreased Throttle Response\u003c\/li\u003e\n\u003cli\u003eUtilizes OEM Hangers\u003c\/li\u003e\n\u003cli\u003eBolt On Design\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MBRP","offers":[{"title":"Default Title","offer_id":67905954939032,"sku":"MBRPS46073CF","price":1444.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/8567\/1064\/files\/39ea8322d1cf71c92fa692b480bba1d5.jpg?v=1794311960"}],"url":"https:\/\/exhaustclip.com\/collections\/cat-back-exhaust-for-2021-audi-s5.oembed","provider":"exhaustclip","version":"1.0","type":"link"}