I have a friend that has a 08 duramax. He was wanting to know if he can remove the cat & put straight pipe in its place. He is going to do the deletes eventually but was wondering if he can start here. Truck is stock right now.

 

wont be of much benefit, might as well do it all at once

 

Ya he would be better off deleting the cat, dpf and muffler at the same time

Luke

 

Thanks guys. I believe I have him talked into doing the deletes. What does he need to do about the egr?

 

he can get a blocker plate