Flowmaster Cat-Back Exhaust Install on 2011 GMC Sierra
Installation of a Flowmaster Force II Cat-Back Exhaust (#817523) on a 2011 GMC Sierra.
I made this video because I was researching installing one of these on my
truck and I couldn't find anything for a GM Truck. I saw some Mustangs, some Camaros, some Ford trucks, etc.
But nobody had documented what it would be like for a GM truck. So here
you go. All in all, it was pretty easy and only took a couple hours. I
can't promise how close they are, but the instructions and kit were for
2007-2012 GM Trucks. So this would most likely apply to them as well, with
perhaps a few deviations.
Also, sorry for the fact that it's all close ups, but when your truck is on
ramps and your lying underneath it you can only zoom out so far.
[15 Oct 13] One more thing as a note on warranties. Here is a snippet
from the Flowmaster FAQ:
"There are some modifications that have the potential to void a vehicle's
factory warranty, but modifying the Exhaust system after the catalytic converter is
not one of them. All Flowmaster Exhaust systems are designed vehicle specific
and do not violate manufacturers factory warranty. If you're having
problems regarding this issue, please contact www.sema.org for more
information regarding consumer's rights on performance aftermarket parts."
2007 Silverado BURNOUT! 5.3L Z71 4x4 ASPHALT DESTRUCTION!!
2007 Chevy Silverado Crew Cab 5.3L Z71 4x4.
Had Maxxis Buckshot Mudders 275/70 R17 on the truck. They had about 32,000
miles on them. Ran em hard and did plenty of donuts and burnouts with em,
so I'd say they lasted pretty well!
Performance mods include K&N Intake, dual flowmaster Exhaust, Gibson headers and HP custom tune.
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2004 GMC Sierra dual exhaust
2004 GMC Sierra 1500 with a Summit Racing Muffler. 3"inlet with dual 2.5"
outlets. 4.8L V8 pretty good sound for only $29.95
Flowmaster 40 on 2009 GMC Sierra 5.3L
Flowmaster 40 series, single in/dual out setup installed on 1-23-10 on my
brand new 09 GMC Sierra 5.3L Texas Edition Extended Cab. Installed with 2
1/2" Exhaust out pipes going to 3
1/2" slash cut chrome tips. This is the truck in park