








🚗 Elevate your ride with Flow FX – where power meets precision.
The Flowmaster Flow FX Chambered Muffler (3.00” Offset In / 3.00” Center Out) delivers a deep, moderate exhaust tone with reduced cabin drone, boosting horsepower and torque through its straight-through perforated core design. Crafted from durable 409S stainless steel with MIG welding, it ensures long-lasting corrosion resistance and vibration durability. Its universal reversible fitment makes it ideal for modern trucks, muscle cars, and daily drivers seeking affordable, high-quality performance enhancement.












| ASIN | B07C9T19YN |
| Best Sellers Rank | #5,986 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Exhaust Mufflers |
| Brand Name | Flowmaster |
| Compatible with Vehicle Type | Car |
| Configuration | Universal |
| Customer Reviews | 4.7 out of 5 stars 2,676 Reviews |
| Global Trade Identification Number | 00700042037537 |
| Included Components | Muffler |
| Item Dimensions | 21 x 10 x 4.5 inches |
| Item Height | 4.5 inches |
| Item Type Name | Exhaust Muffler |
| Item Weight | 9.55 Pounds |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 71229 |
| Manufacturer Warranty Description | 1 Year Limited |
| Material Type | Plastic |
| Shape | Oval |
| UPC | 700042037537 |
| Unit Count | 1.0 Count |
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.
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
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!
J**.
Perfect exhaust for a great price!
Awesome exhaust for the price! It went straight from the delivery guys hand onto my 04' ram 1500 5.7. Sounds great!
S**E
Stainless steel Flow FX straight through muffler great quality and price!
The Flowmaster FX muffler is a great value especially for it being stainless steel I was able to install it with just 2 reducer pipe fittings and some welding and 2 pipe clamps it’s a nice looking muffler the sound isn’t obnoxiously loud it is mellow at idle on my 2002 Chevy Silverado with 5.3 and when you lean into the gas it has a good deep tone there is a slight drone when under light throttle but controllable
R**U
Great product
Amazing product! Fast shipping. Easy to install! And I love the sound and extra power my truck has now.
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
C**R
Exhaust Silencer Review
I recently installed this exhaust silencer on my vehicle, and I’m really impressed with the difference it has made! The noise reduction is significant without sacrificing performance. My car now runs much quieter, especially at higher speeds, and I no longer have to worry about disturbing the neighbors or attracting unwanted attention. Installation was straightforward, and it fit perfectly on my exhaust system. The quality of the material feels durable, and it’s clear that it’s built to last. I also appreciate how it didn’t affect my engine's power output—it keeps things quiet while still maintaining the overall driving experience. One of the best features is how it manages to reduce noise without creating any rattles or unwanted vibrations. Plus, it doesn't add any extra weight, which was a concern I had before purchasing. Overall, this exhaust silencer is a great investment for anyone looking to cut down on noise while keeping their vehicle’s performance intact. Highly recommend!
Trustpilot
3 weeks ago
2 days ago