Dmartin411
New Member
- Joined
- Jul 13, 2018
- Messages
- 8
Hey guys I use to lurk when I had my 03 avalanche I sold her and upgraded to a 2008 ltz 6.0. Love the truck and power of 6.0 but have a question. It has a cold air intake that says GM performance plus the exhaust says that also. It sounds amazing i love it but my question is did GM performance make a cold air and cat back system? I'd love to find the specs about hp increase. Plus filter has seen better days. I want to buy a new one. It looks like a k and n should fit. I'm not sure. Any feedback would be greatly appreciated