{"product_id":"stainless-valved-catback-exhaust","title":"Stainless Valved Catback Exhaust","description":"The Turner Motorsport Stainless Valved Catback Exhaust is engineered to enhance the auditory experience of your G80 M3 or G82 M4. By increasing flow with smooth, dual 3.0\" T304 stainless steel mandrel-bent tubing, this system captures the full, unrestricted sound of the S58 twin-turbo inline-6 engine. The in-house designed muffler is optimized for superior flow compared to the OEM unit, ensuring a better sound even when the exhaust valves are closed, and offers greater control over the exhaust's aggression.\n\nConstructed from T304 stainless steel with a 1.25mm wall thickness, the exhaust features TIG-welded seams and T304 stainless steel 12mm barbed hangers welded in OE locations for precise fitment. Strategically placed slip joints allow for adjustability during installation. This catback exhaust system replaces the secondary catalytic converters and the middle muffler sections with an X-pipe for improved sound, performance, and weight savings. It utilizes factory valve control for seamless integration.\n\nPerformance gains are noted in the mid-range, with a torque increase of +14 ft-lbs and a horsepower increase of +10 HP at 3850 RPM. When paired with the Turner S58 Intake, these gains are further amplified to +23 ft-lbs of torque and +17 HP at 3850 RPM, with smoother delivery from 3000-6500 RPM. The kit includes the dual 3\" stainless exhaust piping, X-pipe, valved muffler, and necessary clamps and hardware for an OEM+ installation. Optional exhaust tips are available separately.\n\nThis exhaust system is specifically designed for the BMW G80 M3 and G82 M4 models equipped with the S58 3.0L engine, including M3 Competition, M3 Competition xDrive, M4, M4 Competition, and M4 Competition xDrive variants. It is compatible with the G83 M4 Competition xDrive as well. The system utilizes factory valve control for seamless operation.","brand":"Turner Motorsport","offers":[{"title":"Default Title","offer_id":52689483366712,"sku":"TMS.13924849","price":1492.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687752739.jpg?v=1784906990","url":"https:\/\/store.motormia.co\/products\/stainless-valved-catback-exhaust","provider":"MOTORMIA","version":"1.0","type":"link"}