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Dynomax Ultra-Flo Welded Muffler Center In/Out: 3.5"


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Dynomax 17517
2 left in stock
Ultra-Flo Welded Muffler
  • Center In/Out: 3.5"
  • Length: 14" Body, 19" Overall
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    17517 - Dynomax Ultra-Flo Welded Mufflers is rated 5.0 out of 5 by 4.
    Rated 5 out of 5 by from Meaty Running straight 3.5" pipe from y pipe back on my 6.0ls swap Chevy, way too loud. Installed this muffler and dang did it quiet it down, sounds great at wide open throttle and not to droney on the freeway. Definitely recommend!!!
    Date published: 2021-02-28
    Rated 5 out of 5 by from 3.5 Dynomax mufflers Quieter than I expected, at idle, on my Procharged sbc, but loud if it’s under boost. Best bang for the buck!
    Date published: 2020-02-12
    Rated 5 out of 5 by from Purchased Dynomax muffler (17517) almost a month ago. Installed on a 2018 Chevy 2500HD. Great sound. Loud but not annoying.
    Date published: 2018-01-08
    Rated 5 out of 5 by from I bought this about 2 weeks ago and installed it on my 2015 Silverado. The truck has a 76mm turbocharger on it and was loud by any standards with an open exhaust. It put down 436hp and 491lbft of torque on 5lbs of boost. I placed my order via phone and picked it up at the Delaware wharehouse. I picked it up on my lunch break and installed it after work. This muffler reduces noise better than anything I have ever used in the straight through designs. Most straight through tube style mufflers reduce noise but the added volume around the perforated tube in this unit makes this muffler much more quite. The turbo is easily the loudest noise under wot. With this muffler only, my truck is somewhere between a stock exhaust and a mild cat back in volume level. If you need to quite an engine down this is a great product.
    Date published: 2017-09-10
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