Now that we have the legal stuff out of the way, its time to make some POWER. AMS now as a test pipe available to eliminate the factory catalytic converter. Now while this is not legal, it does make Horsepower....A LOT OF Horsepower. On our EVO X it was able to make an additional 15 Wheel horsepower gain from JUST A DECAT PIPE!!!!

Some of the attributes of the AMS Stainless Steel Test pipe:
•100% Stainless Steel Construction
•3/8" Thick Stainless steel flanges
•Professionally Tig Welded here at AMS
•15 Wheel Horsepower gains over the stock catalytic converter
•Bolts right in place of the factory catalytic converter
•All gaskets and hardware inlcuded
•Factory bracket for the stock Exhaust hanger
•Stainless Steel O2 sensor bung welded in the factory location