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GMC C/K 2500 Performance Mufflers

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Latest Customer Reviews

Flowmaster 50 Series Big Block Mufflers Reviews


Installed on 2003 GMC 2500HD 6.0

Reviewed By Jonathan V (Saint Paul, MN) Reviewed for a 2003 GMC C/K 2500 —3/2/2011 6:43 AM

I installed this muffler on my truck. The only other engine mods I have on is a Spectre CAI. I highly advise getting it welded, as the clamps just couldn't secure the muffler properly. The shop charged me $150 to weld it- a ripoff, but it's worth it. Flowmaster says that the GM 6.0 is the hardest motor to quiet down, so I advise getting this muffler. According to Flowmaster, this is the biggest, quietest muffler they produce. The sound is great. Very powerful, not too loud, either. There is a noticeable drone at around 2000 rpm, but I got used to it fast. It sounds great on the inside, and even better on the outside. I did certainly feel a power boost all across the rpm band, but no improvement in mpg's. And as usual, AutoAnything was terrific.

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Flowmaster Super 50 Series SUV Mufflers Reviews


Flowmaster 50 series

Reviewed By Isaac W (Hempstead, NY) Reviewed for a 2003 GMC Yukon XL —2/24/2017 1:41 PM

very happy with the overall online purchase experience... I had the dual exhaust and muffler professionally installed..Sounds great... Thank You

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Flowmaster 50 Series Delta Flow Mufflers Reviews


Flowmaster 50 Series Muffler Swap, 2015 Silverado

Reviewed By AJ E (LINCOLN, NE) Reviewed for a 2015 Chevy Silverado —5/8/2018 5:56 AM

The only complaint I have is its not quite as loud as I was hoping, but then again had it been too loud I would have been far more disappointed. Since I wanted it welded in, I had it professionally installed. Took 30 minutes and felt like I got a good deal at $70. Nice tone on start up, barely noticeable drone when the AFM kicks in, smoother acceleration and better mpg but not sure by how much. Autoanything was awesome once again with two day delivery.

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