This decat pipe is made from top quality T304 stainless steel tubing and 8mm thick stainless steel flanges all TIG welded together and includes the nuts and bolts to fit it.
This decat is made to the correct specification diameter of 2.5”/63mm so that it properly matches up and doesn’t restrict the exhaust system like some inferior items out there.
Fitting one of these in place of the standard catalytic converter will free up about 8 bhp even on a standard engine.