This exhaust decat / precat pipe for the. Made of high quality T-304 stainless steel material. Downpipe Inlet outlet 3''Manufacturer Part Number KTD0088-TS1. TIG welded CNC machine flange. 3'' Exhaust Decat Pre Cat Downpipe For Saab 9-3 SS 2.8l V6 Turbo FWD.