2020-2025
2015-2019
2007-2014
2001-2006
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
No guide available for this part yet.
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Flowmaster 50 Series HD Dual In/Dual Out Oval Muffler; 2.50-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)Find parts that fit my vehicle
Item SHG10471
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$309.95 each
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Flowmaster 50 Series HD
- Dual In/Dual Out Oval Muffler Design
- Maximum Exhaust Flow
- Designed to Increase Power and Efficiency
- 2.50-Inch Inlet and Outlet
- Improved Performance
- Oval Shape for Compact Fit in Tight Spaces
- Reduces Interior Resonance for a Mellow Sound
- Heavy-Duty Construction for Long-Lasting Durability
- Improves Exhaust Note Without Compromising Power
- Universal Fitment (Some Adaptation Required)
| Brand | Flowmaster |
| Muffler Inlet Size | 2.50 Inch |
Description
Upgrade Your Exhaust. The Flowmaster 50 Series HD Dual In/Dual Out Oval Muffler delivers exceptional exhaust flow and performance for drivers looking to enhance their vehicle's sound and efficiency. Its dual in/dual out design with 2.50-inch inlets and outlets optimizes power and efficiency, while the oval shape ensures a compact fit in tighter spaces. This muffler significantly reduces interior resonance, providing a mellow yet aggressive exhaust note perfect for daily drivers or off-road vehicles.
Built to Last with Heavy-Duty Construction. This Flowmaster muffler is constructed from heavy-duty materials designed to withstand extreme conditions. Built for long-lasting durability, it is engineered to reduce exhaust drones without compromising performance. Whether you need more power or a better sound, the 50 Series HD Muffler offers a solid, dependable solution.
Installation. Universal fit with some adaptation required based on the vehicle’s exhaust setup. Professional installation is recommended.
Application. Universal fitment with 2.50-inch inlet and outlet pipes. Adaptation may be required depending on the vehicle.
Flowmaster 8525554
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Muffler
4.7
Reviews of Flowmaster Exhaust Products (500+)
Reviews of Flowmaster Exhaust products have an average rating of 4.7 out of 5
Apr 7, 2025
Review shared from Flowmaster Force II Dual Exhaust System; Side/Rear Exit (11-13 6.2L F-250 Super Duty)
2012 XL - Lbrown
Flowmaster
Just what l wanted. Just can slightly hear exhaust in the cab. Will not disturb conversations while driving. No droning noise. Won’t wake the neighbors. But has a nice deep note and good looking exhaust tips with Flowmaster stamped on them. Suites my taste fine. If you are looking for loud obnoxious sounds, this kit is not for you.
Apr 7, 2025
Review shared from Flowmaster Super 44 Series Center/Dual Out Oval Muffler; 3-Inch Inlet/2.50-Inch Oulet (Universal; Some Adaptation May Be Required)
2016 Express - BobbyLo
Flowmaster Super 44
I’ve always used Flowmaster since my first V8. They’ve always sounded beast, although the drone could get to you on long trips. Took a little longer then I expected do to modding the additional pipe do to length. About 1-1/2 to 2 hours without a car lift. But over all a great item and company.
Apr 7, 2025
Review shared from Flowmaster 50 Series HD Offset/Offset Oval Muffler; 3.50-Inch Inlet/3.50-Inch Outlet (Universal; Some Adaptation May Be Required)
2025 LTZ -
Muffler
It is perfect for me. I can hear it without it being obnoxious. Ordering was easy and shipping was fast.
Apr 7, 2025
Review shared from Flowmaster Super 10 Series Center/Dual Out Oval Muffler; 3-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)
2014 FX4 -
Good sound
Easy to install and provides a good sound and adds a little bit deeper tone to the exhaust.
Apr 6, 2025
Review shared from Flowmaster FlowFX Single Exhaust System with Black Tip; Side Exit (21-25 5.0L F-150, Excluding Tremor)
2021 King Ranch -
Flowmaster flow fx
I love hie it sounds now the v8 it's alive thank you american truck
Apr 3, 2025
Review shared from Flowmaster Super 40 Series Offset/Center Oval Muffler; 2.50-Inch Inlet/2.50-Inch Outlet (Universal; Some Adaptation May Be Required)
2014 XLT -
Flowmaster super 40 on my 3.5 Ecoboost
I have had several small block Chevy's 350,400 sm blocks with flowmaster exhaust. First twin turbo V6 and single exhaust I have ever done. But when started you know exactly who made the muffler. There's no mistaking it. Good tone.
Apr 3, 2025
Review shared from Flowmaster Outlaw Dual Exhaust System with Black Tips; Side/Rear Exit (19-24 5.7L RAM 1500)
2020 Big Horn - Rickyrackk
Great product
Great product my 2020 Ram 1500 sounds great with this product
Apr 2, 2025
Review shared from Flowmaster Outlaw Direct-Fit Muffler (23-25 5.0L F-150 w/ Factory Dual Exhaust)
2025 XL -
Absolutely awesome
I installed this on my 2023 Tremor 5.0 over the weekend. I will start out by saying I first installed this and left the resonator on and was a little disappointed. I had a piece of 3” stainless steel exhaust pipe leftover from my son’s truck so I fabricated it to replace my resonator and man what a difference! This thing really talks! And the truck seems to accelerate way easier than before. Definitely added a fair amount of torque. This is not for the faint of heart so if you’re looking for something subtle this is not it.
Mar 31, 2025
Review shared from Flowmaster FlowFX Dual Exhaust System with Black Tips; Side Exit (14-24 6.4L RAM 2500)
2022 Laramie - Tennant
Ram Dual exhaust
I was pleased that all fit good and sounds great. I did have a lift in my garage so that helped out. I was missing one big clamp but used one off of the factory exhaust. I would recommend putting a tack weld on the tips as someone took one off out in the Walmart parking lot. Replacement for that was not cheep. Don’t think they had time to get both ! My Ram sounds good with no droning. Can’t say for sure but does seem like a little better gas mileage. I am pleased and would recommend this.
Mar 31, 2025
Review shared from Flowmaster FlowFX Dual Exhaust System with Black Tips; Side Exit (14-18 5.3L Sierra 1500)
2016 WT -
Easy Upgrade
Installed in about 2 hours using ramps in the driveway. Sounds great, especially when you hammer it. As others have said, the sound isn't great with AFM active.
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