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🚗 Unleash the roar without the roar-out—Flow FX muffler, where power meets polish.
The Flowmaster Flow FX Chambered Muffler (2.50” Center In/Out) is a stainless steel, round-body exhaust upgrade designed for modern trucks, muscle cars, and daily drivers. It features a straight-through perforated core with sound-absorbing materials to deliver a deep, moderate tone that enhances horsepower and torque by improving exhaust flow and reducing back pressure. Built with durable 409S stainless steel and fully MIG-welded, it offers corrosion resistance and vibration durability. Its universal reversible fitment accommodates various custom and tight-space installations, making it a versatile and affordable performance enhancement.
| ASIN | B07J31MNLJ |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #9,368 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Exhaust Mufflers |
| Brand | Flowmaster |
| Brand Name | Flowmaster |
| Compatible with Vehicle Type | Car |
| Customer Reviews | 4.7 out of 5 stars 1,290 Reviews |
| Global Trade Identification Number | 00700042038480 |
| Included Components | Flowmaster 71416 Flowmaster 71416 FlowFX Muffler Stainless Steel - 2.50 In/Out - Round Body - Moderate Sound Exhaust Muffler Flowmaster FlowFX Muffler - 2.50 In/Out - Round Body - Moderate Sound |
| Item Dimensions | 21.3 x 4.7 x 4.5 inches |
| Item Type Name | Flowmaster 71416 Flowmaster 71416 FlowFX Muffler Stainless Steel - 2.50 In/Out - Round Body - Moderate Sound Exhaust Muffler Flowmaster FlowFX Muffler - 2.50 In/Out - Round Body - Moderate Sound |
| Item Weight | 5.25 Pounds |
| Item dimensions L x W x H | 21.3 x 4.7 x 4.5 inches |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 71416 |
| Manufacturer Warranty Description | Check with the manufacturer |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Model Number | 71416 |
| OEM Equivalent Part Number | 71416 |
| Part Interchange Info | 71416 |
| Shape | Round |
| UPC | 700042038480 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car |
J**O
Flowmaster FX
If you are looking for a good growl without obnoxious rasp and on a great budget.... This is the route to go. Sounds very good on a 1uz v8, great growl but not overly loud. Would recommend for sure
J**N
Pretty good Muffler
I was after a bit more sound from my 2003 5.3L Tahoe when I purchased the FlowFX. After having this muffler on my truck for several months now I can say it's definitely louder but it wasn't quite the sound I was looking for. There's nothing wrong with it and this is actually a really nice sounding muffler if you're looking for a really smooth sounding exhaust. I would say this is mellower (if that's even a word) then most of the magnaflows I have heard. That being said the flowFX does sound fuller imo then other Flowmaster mufflers out there. Much less tin can sounding and more like a Magnaflow. I personally like my exhaust to have a little more of a throaty sound to it and this was just too bass heavy for me. The biggest down side by far is the presents of drone. After reading some reviews on here, there's a handful of people claiming that the drone isn't bad or is very tolerable but to each their own. I would say this is a solid 6/10 on the drone scale. It's not the worst drone I have heard but it's enough to bother the family on road trips. For this reason I will be removing it from the Tahoe and am going to replace it with something else. I don't fault the muffler for this at all as it's not really claiming to be drone free. The construction of the muffler is good and looks to be high quality. If you don't care about drone and are looking for a smooth and mellow sounding muffler this will do.
R**.
Pretty loud but good sound
Sounds great on my jeep wrangler, pretty loud cold start but calms down after it heats up no codes and its been on there since June of 2025
K**R
Improved MPG
My Jeep JL has been running with the muffler delete kit for 5 years, but I was never really happy with the sound. I had this installed, replacing the factory resonator. This gave the 3.6L JL a mild sound, which I love. However I wasn’t expecting to gain almost 2 MPG with the change.
B**P
Perfect
Love this thing, exactly what I wanted my truck to sound like. Deep rumble at start up and acceleration and nice and soft at cruising with no drone.
M**N
Good for day to day use
Good deeper more aggressive sound, not op pound until you want it to be! Fit well on a 2015 ford focus with a 2.0”-2.5” in adapter.
A**2
For the price?
Honestly for the price you cant beat it. I got two and installed on my camaro ss they were super quiet but then I deleted my resonators and installed an x pipe to pair with these and now she roars
J**F
Sounds good
Great muffler. Installed easily and sounds great
A**N
Flowmaster at a great price, thank you Amazon!
Back in the old days, I used to pay a fortune for these branded mufflers to be shipped from the States to Dubai. Thanks to Amazon, I can now buy quality stainless steel Flowmaster mufflers for the same price I'd pay if I was in the States, and same day delivery! Big thumbs up! 2.5" is the size of the inlet/outlet pipes internal diameter, by the way.
M**R
Its wicked
Very well made. No defects or scratches. (not that scratches matter to much for me) Installed on my 1983 Firebird 5.0L. I used some pipe to adapt it to my old exhaust and did a “Y” right after the Flowmaster right into down pipes. It sounds absolutely amazing considering I have stock exhaust manifolds. Very easy on the ears. Highway driving I only notice it when flooring it or activity listening. Any audio clip I could get wouldn’t do the sound justice. Very clear, and smooth. I recommend considering the good price
M**Z
Excelente producto
De muy buena calidad , excelente sonido y muy fácil de instalar, ( sonido muy clásico de hot road …
J**H
Good quality product
Installed it on Mk6 Jetta 2.5l i5 and I can hear exhaust pops crackles clearly. Have a small bottle resonator from Vibrant and just order another resonator bigger one, as there is drone so let’s see how it goes. As of now, the exhaust has very deep sound. I think it is more like aggressive/moderate exhaust setup for VW 2.5l engine.
J**S
Bueno el producto
Se escucha bien un sonido muy agradable
Trustpilot
2 months ago
1 week ago