I have a 95 5.7 k1500 and it had no cats when I bought it because the pipe had rusted off now it connects to 3” pipe except for one part by the back tire that is 2” I just wanted to know if that 2” pipe could damage my engine or will it be fine.
It will be fine, but the exhaust flow will be slightly restricted. You’ll probably never notice the difference, but you might lose horsepower at high rpm’s. Old truck 5.7’s don’t like to be driven at high rpm’s anyway!
The smaller pipe probably helps the situation, b/c the engine was designed to expect some cat exhaust restriction.
Thanks I was worried it may cause damage I appreciate the help.