{"product_id":"catless-high-flow-304-stainless-exhaust-downpipe-for-audi-rs4-rs5-2-9t","title":"Catless High Flow 304 Stainless Exhaust Downpipe for Audi RS4 RS5 2.9T","description":"\u003cp data-start=\"259\" data-end=\"581\"\u003eMaximize exhaust flow and turbo performance on your \u003cstrong data-start=\"311\" data-end=\"335\"\u003eAudi RS4 or RS5 2.9T\u003c\/strong\u003e with the \u003cstrong data-start=\"345\" data-end=\"381\"\u003eSTRATEC Straight Header Downpipe\u003c\/strong\u003e. Designed as a \u003cstrong data-start=\"397\" data-end=\"428\"\u003efree-flow, catless downpipe\u003c\/strong\u003e, this system eliminates exhaust restriction to deliver faster turbo spool, stronger throttle response, and a significantly more aggressive exhaust tone.\u003c\/p\u003e\n\u003cp data-start=\"583\" data-end=\"873\"\u003eConstructed from \u003cstrong data-start=\"600\" data-end=\"632\"\u003ehigh-quality stainless steel\u003c\/strong\u003e, this straight downpipe is built to handle high heat and boost levels, making it ideal for \u003cstrong data-start=\"724\" data-end=\"782\"\u003etrack-focused builds and high-performance applications\u003c\/strong\u003e. The simplified straight-through design prioritizes airflow efficiency and power delivery.\u003c\/p\u003e\n\u003ch3 data-start=\"875\" data-end=\"891\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"892\" data-end=\"1302\"\u003e\n\u003cli data-start=\"892\" data-end=\"936\"\u003e\n\u003cp data-start=\"894\" data-end=\"936\"\u003eFits \u003cstrong data-start=\"899\" data-end=\"934\"\u003eAudi RS4 \u0026amp; RS5 2.9T (2019–2024)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"937\" data-end=\"1011\"\u003e\n\u003cp data-start=\"939\" data-end=\"1011\"\u003e\u003cstrong data-start=\"939\" data-end=\"984\"\u003eStraight \/ catless header downpipe design\u003c\/strong\u003e for maximum exhaust flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1012\" data-end=\"1083\"\u003e\n\u003cp data-start=\"1014\" data-end=\"1083\"\u003e\u003cstrong data-start=\"1014\" data-end=\"1046\"\u003eStainless steel construction\u003c\/strong\u003e for durability and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1084\" data-end=\"1129\"\u003e\n\u003cp data-start=\"1086\" data-end=\"1129\"\u003eReduces exhaust backpressure dramatically\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1130\" data-end=\"1191\"\u003e\n\u003cp data-start=\"1132\" data-end=\"1191\"\u003eImproves turbo spool, throttle response, and power output\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1192\" data-end=\"1260\"\u003e\n\u003cp data-start=\"1194\" data-end=\"1260\"\u003eProduces a louder, more aggressive motorsport-style exhaust tone\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1261\" data-end=\"1302\"\u003e\n\u003cp data-start=\"1263\" data-end=\"1302\"\u003ePerformance-focused, free-flow design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1304\" data-end=\"1313\"\u003eNotes\u003c\/h3\u003e\n\u003cul data-start=\"1314\" data-end=\"1480\"\u003e\n\u003cli data-start=\"1314\" data-end=\"1377\"\u003e\n\u003cp data-start=\"1316\" data-end=\"1377\"\u003e\u003cstrong data-start=\"1316\" data-end=\"1375\"\u003eCatless design — intended for off-road \/ track use only\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1378\" data-end=\"1419\"\u003e\n\u003cp data-start=\"1380\" data-end=\"1419\"\u003eProfessional installation recommended\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1420\" data-end=\"1480\"\u003e\n\u003cp data-start=\"1422\" data-end=\"1480\"\u003eECU tuning required for proper operation and performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bull Boost Performance","offers":[{"title":"Default Title","offer_id":53364551647539,"sku":"721814382624","price":799.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2720\/8266\/files\/CATLESS_d4eecb13-777a-4888-b826-3f8e05945f32.jpg?v=1779122235","url":"https:\/\/ntxglow.com\/products\/catless-high-flow-304-stainless-exhaust-downpipe-for-audi-rs4-rs5-2-9t","provider":"NTXGlow","version":"1.0","type":"link"}