{"product_id":"apr-cbk0012-catback-exhaust-system-s4-s5-b9","title":"APR CBK0012 - Catback Exhaust System - S4 \/ S5 (B9)","description":"\u003cp\u003eAPR CBK0012 - Catback Exhaust System - S4 \/ S5 (B9)\u003c\/p\u003e\u003cp\u003eAPR Catback Exhaust System - S4 \/ S5 (B9)\u003c\/p\u003e\u003cp\u003eFits Audi S4 18-25, S5 18-25\u003c\/p\u003e\u003cp\u003eDesigned for enthusiasts seeking the perfect balance of power, sound, style, and quality, the APR Catback Exhaust System for the Audi B9 S4 and S5 is a testament to engineering excellence. With its performance-driven design and durable construction, this system not only transforms your driving experience but also ensures years of reliable performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete catalyst-back system including downpipes, extending from the factory catalyst back.\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\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\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\u003eIncludes an upgraded tunnel brace to accommodate the larger piping.\u003c\/li\u003e\n\u003cli\u003eIntegrated Helmholtz resonator minimizes drone and enhances sound quality.\u003c\/li\u003e\n\u003cli\u003eValve-controlled rear mufflers dynamically adjust sound based on driving style.\u003c\/li\u003e\n\u003cli\u003eRemovable quad 3.5” motorsport-style polished tips with APR logo; optional styles available.\u003c\/li\u003e\n\u003cli\u003eSmooth transitions and straight-through components maximize performance by reducing restrictions.\u003c\/li\u003e\n\u003cli\u003eStrikes the perfect balance of power, sound, style, and quality for enthusiasts.\u003c\/li\u003e\n\u003cli\u003eFully emissions compliant for worry-free operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrackets\u003c\/strong\u003e: \u003cspan\u003ePrecise\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: \u003cspan\u003eAPR\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCategory\u003c\/strong\u003e: \u003cspan\u003eExhaust\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eClamping Type\u003c\/strong\u003e: \u003cspan\u003eSlip Clamp\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eClamps Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eEmission Code\u003c\/strong\u003e: \u003cspan\u003e5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Tip Color\u003c\/strong\u003e: \u003cspan\u003ePolished\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Tip Diameter\u003c\/strong\u003e: \u003cspan\u003e3.5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Tip Finish\u003c\/strong\u003e: \u003cspan\u003eCarbon Fiber with Brushed Inlay\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Tip Quantity\u003c\/strong\u003e: \u003cspan\u003e4\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eExhaust Tip Removable\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: \u003cspan\u003eBrushed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrade Type\u003c\/strong\u003e: \u003cspan\u003ePerformance\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eHangers Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMain Piping Diameter\u003c\/strong\u003e: \u003cspan\u003e2.50\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMain Piping Diameter\u003c\/strong\u003e: \u003cspan\u003e2.75\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMain Piping Diameter\u003c\/strong\u003e: \u003cspan\u003e3.50\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: \u003cspan\u003eT304 Stainless Steel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMuffler Finish\u003c\/strong\u003e: \u003cspan\u003eBrushed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMuffler Quantity\u003c\/strong\u003e: \u003cspan\u003e2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMuffler Type\u003c\/strong\u003e: \u003cspan\u003eHelmholtz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMuffler Type\u003c\/strong\u003e: \u003cspan\u003eSound Absorption\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePipe Bend Type\u003c\/strong\u003e: \u003cspan\u003eMandrel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003ePipe Material\u003c\/strong\u003e: \u003cspan\u003eT304 Stainless Steel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e: \u003cspan\u003eExhausts (Catback Systems)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSub Category\u003c\/strong\u003e: \u003cspan\u003eExhaust and Tail Pipes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSystem Type\u003c\/strong\u003e: \u003cspan\u003eCatback\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTail Pipe Outlet Outside Diameter\u003c\/strong\u003e: \u003cspan\u003e2.5\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eTube Connection\u003c\/strong\u003e: \u003cspan\u003eButt Joint\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Included\u003c\/strong\u003e: \u003cspan\u003eYes\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eValve Type\u003c\/strong\u003e: \u003cspan\u003eOEM\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWarning\u003c\/strong\u003e: \u003cspan\u003eCalifornia Proposition 65\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eWelding\u003c\/strong\u003e: \u003cspan\u003eTIG\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"APR","offers":[{"title":"Default Title","offer_id":47276188467338,"sku":"APR-CBK0012","price":1827.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/0619\/2778\/files\/0_cbk0012_001_normalized.jpg?v=1776692460","url":"https:\/\/www.onlyinstock.com\/products\/apr-cbk0012-catback-exhaust-system-s4-s5-b9","provider":"Only In Stock","version":"1.0","type":"link"}