racing jacket

The Two Step Performance High Efficiency Downpipe is a performance exhaust upgrade for Honda's 2.0L turbo engine, designed to significantly increase efficiency. Research and testing indicate that a downpipe upgrade is one of the most effective modifications for boosting performance. Constructed with 304 stainless steel investment cast ends and CNC pocketed for a smooth transition, this downpipe features a 5.00" OD, 400 CPSI GESI G-Sport catalytic converter. This specific catalytic converter was custom-developed in partnership with GESI for small displacement direct injection vehicles, ensuring optimal exhaust flow while meeting emissions standards. All components are fully back-purged on-site to withstand high exhaust gas temperatures. The wide cast inlet design smoothly blends turbine and wastegate gases to reduce restriction, while the cast outlet provides a smooth taper to connect with factory or most aftermarket front pipes. Installation is designed to be seamless, with the kit including gaskets, stainless hardware, heat-shield stand-offs, a multi-layer lower gasket, an M18 x 1.50mm hex plug (for Accord applications), and an O2 sensor harness extension. No ECU calibration or tune is required, and the use of this downpipe will not result in a check engine light. This downpipe is compatible with various Honda and Acura models, including all 2017-2021 FK8 & 2023+ FL5 Civic Type-R models, 2023+ Acura Integra Type S 2.0T, all 2018+ Accord 2.0T, Acura RDX 2.0T, & Acura TLX 2.0T (excluding TLX Type S). It also fits all variant models including RHD and international configurations. Please note that this product cannot be shipped to California.