T1R Catted Downpipe with Front Pipe for GR COROLLA

Designed for race use ONLY, We offer this cat-less & catted (option) down pipe to maximize the full potential of the GR Corolla's G16E engine. It is more than just 2 pipes and flanges. The collector is 100mm (4 inch) which matches the OEM Turbo housing. This benefits a smooth exhaust flow then tapers down to 76.3mm (3 inch) to increase exhaust efficiency. All down pipes are hand made with aircraft grade stainless steel to ensure the longevity. - Made with SUS304 Stainless steel - Comes with reinforced gaskets & hardware - OEM fitment -reduces engine temperature -comes as a combo (downpipe & frontpipe) **RACE USE ONLY**