dirtautoguy
I'm Awesome
- Joined
- Jul 22, 2015
- Messages
- 247
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I have decided to change the head pipes on my 1996 k1500. it has the 1 7/8 " and I have 2 1/4" from under the passenger side back. I dont know how much I will actually gain from it but I am curious and would feel better if I did the headpipes to flow better. My question is what size are the stock manifolds collector for the 3 bolt flange. and I'm debating on what cats to get and put on. thanks for the help
