To complement the line of Invidia Exhaust Systems, Invidia offers the final piece of the puzzle with Invidia Test Pipes. Manufactured from SUS304 Stainless Steel, these Invidia Test Pipes will replace your stock catalytic converter and unleash the power in your car.
Installed these on my g35, and the car really responded well to them.
The sound is great and the power increase can be felt!
Would definitely recommend these!