Invidia 3in Stainless Downpipe

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UNPARALLELED PERFORMANCE Invidia exhaust systems are engineered with exceptional craftsmanship, premium materials, and cutting-edge design. Their 3in downpipe with high flow cataly tic converter improves engine performance significantly by reducing back pressure. A divorced cast bellmouth enhances the flow out of the wastegate to prevent boost creep before providing a smooth transition into the 3 inch tubing for minimal restriction. The divorced design separates the wastegate flow at turbo outlet to prevent a disruption of the main exhaust flow. Fabrication from 304 series stainless steel ensures the downpipe lives a long rust-free life while cast stainless flanges provide a leak-proof installation. This is a fundamental upgrade whatever your performance goals may be. ECU re-calibration is required when fitting this part. An additional oxygen sensor bung is provided for use with a wide band AFR gauge. A plug is supplied if it is unused. Manufacturer Part No: HS08SW1DOCB What it fits: STI MY08-21 WRX MY08-14 Legacy GT MY05-09 Show more