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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 40 Series Delta Flow Mufflers Reviews


muffler

Reviewed By Abel p (EAST PROVIDENCE, RI) Reviewed for a 2004 Hummer H2 —12/25/2014 5:15 AM

Great muffler for the price

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Flowmaster Super 44 Series Mufflers Reviews


I think I think it's a little louder than the Spintech muffler

Reviewed By Chris H (Tacoma, WA) Reviewed for a 1993 Ford Ranger —12/24/2014 8:25 PM

I've only had flow masters in VA but never in the v6 0 comparison to a v8 vs v6 well there's a big difference but to be sick still sounds good

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