can anyone give me some info on what is test pipe, down pipe, and what do i need to replace it after i take out the catalytic converter on my S2k so that the downpipe is part of a turbo setup. the test pipe is a straight, empty pipe that replaces the catalytic converter. once you take out the catalytic coverter you will...11-100. 101-1000. 1-10. catalytic converter Companies. based in Austin, TEXAS (USA). Premium. Suppliers of Catalytic Converters, Exhaust Modules, Formed Pipes, Mufflers and Complete Exhaust and After treatment Systems.
Catalytic Converters. By Type. MagnaFlow is always searching for vehicles to test-fit new performance exhaust systems and/or direct-fit catalytic converters. If you would like to register your vehicle in our Developer Program, please contact us here .