Gibson headers on 04 GMC Yukon Denali 6.0
Reviewed By Clint B (POCATELLO, ID) Reviewed for a 2004 GMC Yukon —8/29/2014 1:53 PM
I knew what I was getting as this is the third set of shorties I've put on a GM vehicle. This is the first set of Gibson's though. They make a nice solid product. I could immediately feel the increase in hp and torque. Install went well. My one knock is the instructions say to reuse the factory flange gaskets. That sounded like a bad idea, so I called Gison to verify and they said to replace them if over 100k miles. Just buy new ones anyways at any auto parts store for $7 a piece.