Installed this product on my 2021 L5P Duramax. I previously had the 4" straight pipe but the cab drone was unbearable. This cut the drone and quieted up the exhaust a little bit to make the driving experience much more enjoyable. Great product!
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Universal 4" Stainless Twister Muffler (71299)
Regular price
$162.91 CAD
Unit price
Purchase to earn 162 Dirty Dollars Learn More
Description
Description
Fit: Any Truck with a 4" Exhaust System
Flo-Pro Exhausts are designed to fit all wheelbase & cab configurations unless otherwise specified.
The Twister Muffler 71299 by Flo-Pro is a universal muffler add-on for any 4" exhaust system. The Twister muffler uses a high-flow dual-path system to keep your exhaust quiet enough for the street but doesn't restrict the flow like your OE muffler would.
It's designed to meet most track requirements and works as a resonator on diesel applications. Flo-Pro has tested these vs open headers and has found an insignificant loss of power when adding the twister muffler system!
Part Number: 71299
Features
Features
- Fits ANY 4" Exhaust System
- Length: 18"
- T409 Stainless Steel
- High-Flow
- Continuous Spiralized Design
- Meets Most Track Requirements
- Less Restrictive Than Glass Packed Designs
- Works to reduce Drone
- Continuous spiral design minimizes turbulence for a greater flow which increases HP over other spiral baffle designs.
- The dual flow path cancels noise and creates a vacuum effect that accelerates the exhaust through the muffler.
Questions and Answers
Questions and Answers
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Universal 4" Stainless Twister Muffler (71299)
Customer Reviews
Overall rating: 4.6 / 5 from 20 reviews.
Got rid of my drone, pretty happy with it
When it comes to international fees, don't split orders up into multiple tranxactions. My credit union charged me for 2 different transactions even though I autorized 1 charge. Maybe you canooks didn't mean too, but it happened. When I am using a card at a dealers and they post a 4% fee for using a card, I have the option to accept, pay cash or buy somewhere else. Your system did not let me know I would be paying an international fee, let alone 2 on 1 order. I will not be buying from you again for that reason, unless Cory fixes it.
Just got the Twister and got it on. Was very simple install. Started it up and immediatley noticed the obnoxious straight pipes cummins 5.9 was gone. Took it out and my power was still there but drone was gone. Good job, Canooks. Will be ordering more from Dirty!!
As advertised and quick delivery! Installed on my 2006 LBZ Duramax. Cured my highway drone with the 4” straight pipe without losing to much exhaust note. Also took the harshness off my 10 blade turbo whistle
Sound perfect
Reduced the noise to a perfect level and eliminated all cab drone
Remove the drone love it
Product was great. But as anyone we don’t go over to a terms and condition page with other details such as you may be possible charged a higher rate of shipping due to tariffs. Well i could have bought 2 of the dam things from a more reputable dealer. Make sure you buy only from a US company 🖕
Simple install. Exactly what i ordered
Killed the drone in the cab, exactly what I wanted
I love it
Welded it in just behind the mounting flange in front of hanger and flow pro glass pack and it helps reduce the drone
Muffler fit perfect and sounds great. Much quieter in the cab still sounds awesome with the windows down.
👍
I like it better than straight pipe. No in cab drone noise and sounds good outside as well.
Easy install
I finished the install on Saturday and wow does it have some bark now and the truck went from 13.7mpg to 20.6 so impressed thank you
Makes it quiet enough to not get in much trouble if your easy on it but still loud. Can't complain
Easy to install. It took the diesel drone away in the cab and gave it a better sound. I recommend ordering the flo pro band clamps.
