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Gibson Exhaust Performance Headers Part #GP129S Customer Reviews
9 Customer Reviews
Reviewed by Rich A (OGDEN, UT) Reviewed for a 2010 Chevy Silverado — Aug 30, 2017 8:26 PM
Excellent quality, 14 gauge pipes. Easy install, both sides slid right into place, bolted right up, no coaxing, no tweaking. Sound awesome, 200 miles on them so haven't checked mpg yet.
Reviewed by Daniel F (North Las Vegas, NV) Reviewed for a 2010 GMC Sierra — Aug 14, 2017 1:33 PM
Quick delivery of well packaged product. Instructions about preparing to install the headers were great. Complete project took about 6 hours and I was not hurried. These shorty Headers gave my 2010 6L GMC 2500 exactly what I was looking for... about 10% better fuel economy and 5% more mid-range power while towing my RV.
Reviewed by Jeff P (Liverpool, NY) Reviewed for a 2010 GMC Sierra — Jul 29, 2017 4:08 AM
I have a 2010 GMC Sierra 2500HD with a 6.0 and I have already installed Gibson's catback dual rear exit exhaust and Bully dogs power programmer that improved power and torque, then I added the headers and a Bully dog intake the greatly improved throttle response. Overall very much worth the time, effort, and cost
Reviewed by Ryan W (Oshkosh, WI) Reviewed for a 2002 GMC Sierra — May 11, 2012 8:25 PM
I haven't put them on yet but they look sweet and I hope I gain As much power and increase my gas mileage by as much they say they can. But they look really good and looks like a good product.
Reviewed by George L (Stephenville, TX) — Aug 01, 2011 6:09 PM
easy installation all bolts and gaskets were included. i have more throttle response than before and better gas milage if i dont mash down too hard on the gas.. overall it is definately worth the money.
Reviewed by Harold J. J (Kaufman, TX) Reviewed for a 2004 GMC C/K 1500 — May 18, 2007 7:18 AM
Headers were very easy to install and gave a big inprovement in performance, also gibson were cheaper than JBA and I feel the same quaility.
Ships Between 9/04 - 9/06
- What Do You Drive?
- Part #:GP129S
- 1 5/8" tubing size
- Not equipped with EGR fittings
- Download installation instructions (PDF)