Mel's Manufacturing 4" Cat Back Exhaust Kit With Muffler 01-07 GM 6.6L Duramax material option:aluminized We've had many requests from

We've had many requests from owners for a system to maximize the output and life of the stock in-tank lift pump

Constructed from 1-3/8" solid steel stock

This is a direct replacement harness that does not quire you to relocate the PMD itself for a quick repair

vehicle specific mounting pod

all done by electronic input

Mel's Manufacturing 4" Cat Back Exhaust Kit With Muffler 01-07 GM 6.6L Duramax material option:aluminized We've had many requests fromMel's Manufacturing's cat back exhaust system is a great way to upgrade the look of your factory exhaust for the guys that want to keep the cat in place. Each kit comes with everything required for installation. Available in aluminized or stainless steel