The PERRIN Performance test pipe is replaces your stock Evolution catalytic converter for added performance and a higher flow rate.

The PERRIN test pipe is produced exclusively from 304 stainless steel. The 3-inch center section has no bends for a straight through, high flow design. Stout 1/2-inch flanges prevent warping at high temperatures.   (Unusually high temperatures can occur from use of a larger turbo or under racing conditions.) Finally the entire piece is polished to a mirror finish.

The PERRIN test pipe can be use in conjunction with the stock down pipe or stock cat back exhaust system.   Use the test pipe with the PERRIN down pipe and PERRIN cat back exhaust to produce amazing horsepower! Designed to eliminate the catalytic converter for race/off-road use only.

The PERRIN Performance cat delete pipe is the first to come with an O2 simulator

The PERRIN Performance O2 Simulator attaches into the vehicle's wire harness simulating the natural operations of an Oxygen sensor.