{"product_id":"autowerke-bmw-b58-catted-downpipe","title":"Autowerke BMW B58 Catted Downpipe","description":"The Active Autowerke BMW B58 Catted Downpipe is engineered to unleash the potential restricted by the OEM downpipe in B58 engines. By utilizing 4.5-inch diameter 304 stainless steel piping with 1.5mm wall thickness, this downpipe significantly reduces exhaust back pressure, leading to quicker turbo spool, increased horsepower, and improved torque. The piping design minimizes bends and maintains a minimum diameter of 80mm to match the stock exhaust system.\n\nThis downpipe features a high-flow GESI G-Sport Ultra High Output Catalytic Converter. The GESI converter is EPA registered and OBD2 compliant, suitable for 1996 and newer vehicles in 49 states (excluding California due to its specific emissions regulations). Its proprietary precious metal loading technology greatly reduces emissions, aiming to eliminate Check Engine Lights. The converter is rated for engines between 500 and 850 horsepower and can reach operational efficiency within seconds of startup.\n\nA key benefit of this downpipe is that NO PERFORMANCE TUNE IS NEEDED. It is constructed from durable, TIG-welded 304 stainless steel and is made in Miami, Florida. It comes with a 5-year\/50,000-mile warranty on the shell and tube ends, and a 2-year\/25,000-mile warranty on the catalytic core, though the latter is voided if the vehicle has excessive burble beyond stock settings.","brand":"Active","offers":[{"title":"Default Title","offer_id":52686763065656,"sku":"AA-B58-DP-GESI","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660671537.webp?v=1784876447","url":"https:\/\/store.motormia.co\/products\/autowerke-bmw-b58-catted-downpipe","provider":"MOTORMIA","version":"1.0","type":"link"}