Our Toyota Celica ST185, ST205 & MR2 Turbo Decat Downpipe replaces the standard restrictive downpipe and catalytic converter with a stainless steel, 3" one-piece item. Increasing the bore of the downpipe and replacing the restrictive catalytic converter allows the exhaust gasses to flow much more freely, increasing the power output of the engine. Finished in a sleek, ceramic coating to provide superior heat protection - a must have for fast road and track day uses. Features: Manufactured from T304 stainless steel 3" bore TIG welded, CNC machined flanges Sensor bosses fitted Direct bolt-on fit Flange designed to accept CT20/26 turbo Gaskets and bolts included Compatible with: Toyota Celica ST185 & ST205 models Toyota MR2 SW20 Turbo models Please note: this item may not comply with your local emissions regulations.