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Brandon D.

First of all, this is my second order and both have shown up at my door in Alberta in 2 business days, thank you for that! I read many reviews on Powerstrokes and Cummins trucks, and I am happy to report that this resonator performs beautifully on my 2015 LML Duramax that is deleted with a downpipe, uppipe, and 4" straight pipe exhaust already on it. This resonator works extremely well, and I noticed it as soon as I started driving my truck up my farm laneway before even hitting highway speeds....

Brandon W.

Easy to install, made my 12v Cummins alot less barky. I can actually have a conversation without yelling now. Straight pipe usto drone so much I thought I'd get pulled over everywhere. If you need a muffler this is the best way to go! Thanks dirty diesel crew!!

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Brian M.

Ordered the 4" twister to add to my flo pro delete pipe! Awesome quality and fast shipping. Thank you!

Brandon M.

Installed on 18 cummins with 5 inch. Was easy to find a place to put it being so short. It lowered the sound a few octaves but not like an actual muffler. It got rid of the ear piercing crackle at high rpms. Now have it paired with the flow-pro 5x8x30 baffled muffler and its perfect. Rich and throaty

Josh D.

Fit great other then it being roughly 2” shorter then delete pipe so I had to adjust other connections to make all hangers fit nicely

Lindsay H.

The twister is amazing! No drone at all and not as loud as I thought I would be, just loud enough especially when I get my foot into it!

Kyle

Got ride the drone around 100kph on my 4" straight pipe. Quieted it down a bit as well and sounds perfect. Quick shipping from DDC as usual! Thanks

Loren W.

Eliminated the highway drone, didn’t change the idle sound which is what I wanted, sounds great now and isn’t annoying on long trips.

Jaymie P.

I bought this for 17 powerstroke with 5” flopro straightpipe. I was experiencing major in cab drone at 1500rpm under load, the twister fixed the drone issue but definitely quieted the truck a lot hope this helps.

Oliver A.

No drone with my 5” exhaust

Universal FLO-PRO Twister Muffler (51299 / 51600) Reviews