Description
Flowmaster’s FlowFX series mufflers deliver a moderate performance tone for the enthusiast looking for an exhaust note that is different from the “chambered” muffler sound. The interior features a large 3.00-inch “straight-through” stainless steel perforated core, surrounded with high-temperature sound absorption materials delivering a deep traditional mellow tone. The internal flow design is reversible, so the muffler can be installed in either direction to best suit the vehicle application and offsets needed. Features include fully MIG-welded “bright” 409 stainless steel construction with the FlowFX logo embossed on both sides of the case. The FlowFX line of mufflers is perfect for the person looking for a show quality performance muffler at an economical price point and in a compact sized case.
Imported customer feedback
What customers reported
4.6 / 5
202 ratings
Source: Amazon. These reviews were imported from the source marketplace and are not reviews of purchases made on this website.
No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.
Exact identity, part numbers, model references, and available compatibility evidence
Buying guidance
Quick decision
An identity-first mufflers listing organized around stable product references and available compatibility evidence.
Fit and size notes
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Specification notes
- Canonical product: MP-US-B08D9RVBBT
- Source product ID: B08D9RVBBT
- Category: Replacement Parts / Exhaust & Emissions / Mufflers
- Available images: 4
Before you buy
- Match the complete identifier, side, position, connector, dimensions, and visible design with the existing part.
- Treat uncertain vehicle notes as a buying aid, not as a confirmed fitment guarantee.
Hunter –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
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Nadine Lyn –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
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.
Uchiha Scott –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
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.
L T –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Good quality and nice sound, no drone on the highway.
Kelsey –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
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
Jon –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Had to cut the ends off and re-weld new 3 inch pipes because of how badly crunched in the ends were
James –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Looked great, clean. Great price.deep sound. Fitt perfect. Has held up great. Performed as expected. 3 inch flows .
Not worth the money –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
I put this muffler on my 98 Dodge Ram 1500 5.9 magnum. It’s a 3” muffler and I get tons of compliments on the sound. Real throaty at idle and a beast when opened up then nice and quiet at cruise.
eriks strazdins –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Easy fit and sounds great!
EVAN CLESS –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Good solid heavy duty muffler. Works great and sounds good.
Alexander temple –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
The welds are very nice. The sound is quieter than the mbrp one but it’s like an inch shorter. In my 5.7 hemi still sounds good.
Lanny –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
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.)
Bati Miranda –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Verified Purchase
Worked great on my eco boost improved the performance and sounds badass