Reviewed By Pete S (Taylorville, IL) Reviewed for a 2011 GMC Sierra —4/26/2017 9:53 AM
I installed this system on my 2011 GMC Sierra and it is fantastic. I have noticed an increase in fuel economy along with that signature Flowmaster performance.
Reviewed By Alan F (Kansas City, MO) Reviewed for a 2017 GMC Sierra —4/26/2017 7:50 AM
Love the sound and chrome tips. Installation instructions should address the driver's side pipe better. There is no mention of additional sockets/tools needed to install the hanger for the rubber mount. Having done this before on an '08 model, I had the tools. If not for that I would have had to make a trip for them. More difficult on the garage floor but can be done.
Reviewed By Joe M (Troy, MO) Reviewed for a 2003 Ford Excursion —4/26/2017 5:04 AM
The exhaust is nice and has a good note to it. It's not as aggressive as I expected, but my options for a system for my truck were limited due to having the v10. Bolted up easily, and only had to make one cut to the last pipe to add the stainless tip. Overall, I'd recommend this product.
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