{"product_id":"76mm-t304l-stainless-steel-cat-back-downpipe","title":"76mm T304L Stainless Steel Cat-Back Downpipe","description":"Turbocharged engines generate significant heat that can hinder ECU's ability to optimize ignition and fueling maps. OEM downpipes, often around 63mm with restrictive catalytic converters, create back pressure, forcing the turbo to work harder.\n\nThis 3-inch downpipe is constructed from .063 wall T304L stainless steel mandrel tubing, precision TIG welded with Argon back purging for a clean interior and exterior finish. It features a CNC-formed hanger and laser-cut flanges that connect securely to the chassis and withstand high thermal conditions. The flex couplings include an internal stainless steel interlock liner for smooth flow of high-temperature exhaust gases. This model comes standard with a 300-cell high-flow catalytic converter.\n\nKey features include a 76mm diameter, full stainless steel construction, a reducer for OEM cat-back compatibility, interlocking flex joint for high EGT stability, and an integrated laser-cut\/CNC-formed heat shield. It directly removes the factory catalytic converter from the turbo for increased exhaust flow and reduced back pressure. An O2 harness extension, precision stainless V-band turbo flange, and precision stainless band clamp to the mid-pipe are also included, along with an integrated OEM upper turbo support bracket.","brand":"HPA Motorsports","offers":[{"title":"Default Title","offer_id":52688700866872,"sku":"HVA-253-STREET-1.8","price":879.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/662668150.webp?v=1784893183","url":"https:\/\/store.motormia.co\/products\/76mm-t304l-stainless-steel-cat-back-downpipe","provider":"MOTORMIA","version":"1.0","type":"link"}