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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
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
Reviewed by George L (Stephenville, TX) — Aug 01, 2011 6:09 PM
Reviewed by Harold J. J (Kaufman, TX) Reviewed for a 2004 GMC C/K 1500 — May 18, 2007 7:18 AM