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Dynomax Cat-Back Exhaust System Ultra-Flo Stainless System

289-39432

Dynomax
made in usa

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Cat-Back Exhaust System Ultra-Flo Stainless System
Cat-Back Exhaust System
  • Ultra-Flo Stainless System
  • 2007-10 Silverado/Sierra 2500HD/3500 (2007 New Body Style)
  • 2wd/4wd
  • 6.0L
  • 4" Diameter Tubing
  • 5" Polished Stainless Tip
    • Currently unavailable.
    This product is not available, please call customer service for options, at 1-800-345-4545.

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    39432 is rated 3.8 out of 5 by 6.
    Rated 5 out of 5 by from Hard to find...2008 GMC work truck I bought this three week ago and was very pleased with the fitment and sound. A little aggressive but not too much. It took me an hour to remove the OE exhaust and install the new. Very happy with my purchase!
    Date published: 2016-12-03
    Rated 5 out of 5 by from Great Fit! After searching for an exhaust for my 07 Silverado 3500HD I finally found this exhaust that fit and sounds great. My truck has the gas 6.0 Vortex engine with a single cab so trying to find an exhaust to fit was more of a challenge then I thought. After returning the first exhaust I ordered because it was wrong (from another company), JEGS had the right matching exhaust, that fit my truck! I got a lot of compliments that my truck sounds like it has an attitude now! This single sided exhaust sounds and out performs a lot of other exhaust systems I seen and heard. I paired it with an intake and a tuner...great improvement for minimal cost!
    Date published: 2014-12-28
    Rated 4 out of 5 by from No regrets Overall very pleased with this exhaust system. Note that the muffler in this system hangs as low or even a little lower than OEM. But the sound is great. Quiet at light throttle but great sound when you open it up.
    Date published: 2020-12-02
    Rated 4 out of 5 by from Good system I used this kit on my modified 03 Suburban. Of course I had to modify the brackets to fit my application. It is a nice looking system but the muffler is louder than I expected, even though the body of the muffler is large. It is supper quiet at 50mph and below, but while accelerating it is loud (I also have headers), but not obnoxious.
    Date published: 2016-06-05
    Rated 4 out of 5 by from Great Sound...but After thorough internet research, I narrowed my choices down to this and the Magnaflow. I was looking for a deep throaty sound, not obnoxious. Would have gone with the Magnaflow despite being $300 more, except they didn't have the exact fitment for my cab/bedlength. The Dynomax is super easy bolt on. I did not have to cut anything to get the stock exhaust off. 2009 Silverado 2500HD 6.0 Vortec. Only hiccup I had was the clamp bolt on the exhaust tip twisted off. Jegs handled it beautifully, and I had a new clamp the next day. The sound is great on the outside, a VERY deep rumble. I think the fact that it is a 4inch diameter is the main reason, but it's low...and roars when you stomp it. 1 star deduction is for the drone at 1600-1900rpm. Otherwise, inside, it's relatively quiet. Looking back, that's one thing the Dynomax lacks that the Magnaflow has...a resonator. So now I'm considering adding one of those.
    Date published: 2016-05-17
    Rated 1 out of 5 by from Horrible fit and sound I don't know if I got a lemon or if this kit is just that bad but the fitment was horrible. It ended up being about 6" off the ground and looked terrible. It was so loud in the cab that with all the windows down I couldn't even hear the exhaust outside. And the point of exhaust is to sound better and make the engine flow the exhaust gasses better but my engine worked twice as hard with this exhaust and I lost 3-4 mpg and no I wasn't driving like a teenage kid all the time. So no this is a horrible kit
    Date published: 2016-09-15
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