








🚗 Unleash the roar without the drone—Flowmaster Flow FX, where power meets precision.
The Flowmaster Flow FX Muffler (3.00” Center In/Out) is a high-performance, stainless steel muffler designed for modern trucks, muscle cars, and daily drivers. Featuring a straight-through perforated core and sound-absorbing materials, it delivers a deep, moderate exhaust tone while reducing cabin drone. Built with durable 409S stainless steel and fully MIG-welded, it offers long-lasting corrosion resistance and vibration control. Its universal reversible fitment makes it adaptable to various custom exhaust setups, improving horsepower and torque by optimizing exhaust flow.












| ASIN | B08D9RVBBT |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #3,944 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Exhaust Mufflers |
| Brand | Flowmaster |
| Customer Reviews | 4.7 4.7 out of 5 stars (265) |
| Date First Available | July 20, 2020 |
| Exterior | Machined |
| Global Trade Identification Number | 00090127088463 |
| Item Weight | 13.82 pounds |
| Item dimensions L x W x H | 25.1 x 9.9 x 4.3 inches |
| Item model number | 71249 |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 71249 |
| Model | Flowmaster 71249: 3.0 Center In/Center Out, 4X9X18, Flow Fx Muffler |
| Product Dimensions | 25.1 x 9.9 x 4.3 inches |
| Shape | Oval |
| UPC | 090127088463 |
| Vehicle Service Type | Car |
X**Z
Affordable and reliable
If you’re looking for a good muffler to replace one that is worn out or rusted out, this is really a great muffler gets the job done and it amplifies the sound of your car
J**G
Excellent product! 5.7L Hemi sounds fantastic with it!
Muffler sounds great! I had my truck essentially straight piped with the factory catalytic converters on. I couldn’t stand the droning in the cabin and was looking for an inexpensive but effective muffler. This muffler helped reduce the cabin noise significantly and the truck still sounds great. I would highly recommend this product!
A**X
Helped quiet down triton v10
Installed a flowmaster 40 to replace the old rotted muffler on a triton v10 motorhome, ended up being the worst sounding exhaust ive ever heard in my life. Ordered this flow fx to install before the 40, helped quiet down the system and make the note bearable.
C**E
Sounds good but not too aggressive
Sounds good if you’re looking for a little louder than stock. Not too loud and no drone Just gives a deeper tone. Looks good also. I used it on a 95 Chevy dually with a 454 single 3 inch exhaust. At About $50 is a great price. Can’t buy stock for that anymore
U**T
Lil quiter
I got 2016 Ram v6. I had super 44 on it. Sounded horrible when accelerating, like one of those low hondas kids drive. This muffler went on like a breeze. Sounds bit quiter, but not alot. Gonna add a resonator after the muffler and see what that does. Nice looking finish to it though lol.
J**N
Sounds good.
Sounds decent. I bought for my 2002 F250 7.3 power stroke . Well Amazon said it would fit. Well I should have double checked my pipe size. My fault.The 7.3 is 3.5" factory exhaust. I ended up just buying adapter because I only have one last inspection so I can register it and then it'll be coming back off anyway. I'll probably be using it for something else anyway 😂.
K**N
Great muffler, I love the deep rumble.
Sounds great on my truck. Really let's the engine breathe. Very well made and it has increased the torque and throttle response in my my old pickup. Only drawback is the drone in the cab however alot of that may be just my setup as I just put a turndown pipe 18 inches off the back of the muffler.
T**.
awsome
this muffler sounds awsome deeper sound then expected, it is a little louder than i was thinking it would be but still not bad over all great sound for the money
L**Y
Super happy with this. Sounds awesome. Price is better than anywhere. My neighbors might not be as happy. But it's so much quieter than my old exhaust. Has that cool rumble and no drone on the hwy. My person can actually talk to me when I'm driving........(as if I'm listening lol.)
K**Y
Sounds great. A bit quieter than I was hoping but I'm sure it'll get louder over the years. Running with cats and no resonators on my 2010 Tahoe. Absolutely no drone on the highway is a major improvement from my old thrush welded
L**T
Good quality and nice sound, no drone on the highway.
N**N
Fair price and work great. Truck was obnoxiously loud thanks to my husband is still being 17 mentally but now it sounds good with just a bit of noise so we’re both happy.
J**N
Had to cut the ends off and re-weld new 3 inch pipes because of how badly crunched in the ends were
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