



🔥 Dominate the streets with the Outlaw roar!
The Flowmaster 815425S Outlaw Series Race Muffler is a compact, durable exhaust component designed for racing applications without decibel restrictions. Featuring no internal packing to prevent blowouts, a polished finish, and an embossed logo, it delivers a deep, aggressive sound that enhances throttle response and fits seamlessly onto header collectors or existing exhaust systems.

| ASIN | B008KWIFKW |
| Best Sellers Rank | #626,202 in Automotive ( See Top 100 in Automotive ) #190 in Automotive Performance Exhaust Mufflers #11,896 in Automotive Emission & Exhaust Products |
| Brand | Flowmaster |
| Customer Reviews | 4.5 4.5 out of 5 stars (106) |
| Date First Available | July 13, 2012 |
| Exterior | Painted |
| Global Trade Identification Number | 00700042027439 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.3 pounds |
| Item model number | 815425S |
| Manufacturer | Flowmaster |
| Manufacturer Part Number | 815425S |
| Model | 815425S |
| OEM Part Number | 815425S |
| Shape | Round |
| UPC | 700042027439 |
| Vehicle Service Type | Car |
D**L
Great option for 3.5 eco boost f150
This thing sounds absolutely insane on my f150 3.5 eco boost. Muffler delete and replace with flow master then dual tips coming out in front of the back wheel. It sounds great, deep rumble for idle and when you step on it it's goes crazy.
C**O
Amazing!
I have a 3 Gen Ram1500 5.7. Get this! It sounds so amazing on my truck especially when I give it throttle. You won’t be sorry
J**.
Great sound
They really woke my 5.7 hemi up. Definitely would buy again
J**L
Doesn’t last long.
Smells GREAT buut doesn’t last long sadly.
M**2
Absolutely fantastic sound for a V6
Son bought a 2022 Dodge Charger GT, has a 3.6 V6 so exhaust work can be a little touchy with V6's. Luckily I had a buddy that's a big dodge fan and he recommended me these. We did a muffler delete and replaced the resonators with the Flowmaster Outlaws and added 4 inch Flowmaster tips and hot damn, sounds AMAZING!! Highly recommended.
A**R
Excellent Quality
Installed on my 2016 F150 with the 3.5L Ecoboost under the hood- it sounds great! Still sounds like a V6, of course, but very aggressive and raspy. I’d recommend!
B**N
Mid Grade
Appreas to be solid not impressed by rust already developing from out of the box
W**N
Flowmaster Outlaws on 5.7 hemi
Just the tone I was looking for. They have a nice deep rumble. Loud when I want it to be. Little to no drone. I do have a manual transmission.
C**S
I love the sound
C**E
bon produit
A**.
Je les est poser sur mon Dodge charger gt 2018 et sa sonne bien...il sont posée à la place des résonateur.pas très bruyant parfait pour le Québec.ps g lesser les muffler d'origine pour l'instant..😉. Ok rectification. Jumelée avec un (cai) cold air intake ,airaid quand on atteint 4000 rpm,ma fille m'a dit....(sa arache les oreilles tes trucs )... TK encore une fois de plus sa a vraiment un beau son le tout jumelée ensemble 😁😉.
N**N
Little louder then I expected. I like them, neighbours don't
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