Reviewed By Randy M (Vancouver, WA) Reviewed for a 2015 GMC Sierra —10/21/2016 5:07 AM
Nice quality and noticeable HP difference
Reviewed By Josh H (Jonesboro, AR) Reviewed for a 2002 GMC Yukon —6/27/2010 12:20 PM
If it wont kill you to dish out the money i would recommend these headers. I gained a consistent 2 mpg better, accelleration seemed to be smoothed out, definatly winds through the rpms quicker now, didnt lug at lower rpms like it used too. Didnt make exhaust very much louder at all that i noticed as i already had a custom cat back exhaust...just changed the exhaust note, a little more aggressive...seems that you can hear individual cylinders firing....i feel more low end torque for sure......I LOVE THESE HEADERS!!