4" Cat Back exhaust
Ford Powerstroke from 1999-2002
This system is recommended as the minimum exhaust
modification to run either a single stage computer module or the Torque Pro 2000
LPG Assist, individually, but not both at the same time. When using the single
or three-stage computer module in conjunction with propane, the 4” stainless
exhaust is recommended.
This ATS cat back exhaust is manufactured out of aluminized steel tubing with an
aluminized steel muffler. It comes with all brackets, clamps and hangers. With
the ATS cat back exhaust installed, one can see as high as a 200 F drop in
exhaust gas temperatures with as high as a 15 H.P. gain in power.