So I have a 1998 K1500 Regular Cab Step Side with a stock 350, stock cats, and an (4' Tall x 18" long body) IMCO muffler (dual 2.25" in, dual 2.25" out) the whole system is dual 2.25" pipe that goes to two 3.5"x18" tips that are cut at an angle.
What I am looking to do is keep my stock cats...