mufflers

Flowmaster 15450S - Exhaust Muffler

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$109.95

$122.95

You save: $13.00 (11%) off MSRP

Unavailable

This product is currently unavailable.

This is a universal fit product

  1. That means this product doesn’t have fitment for any specific vehicle.
  2. If fitment is applicable for your application, be sure to check compatibility with the other components.
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About this product

Part #: 15450S

Outlaw mufflers are designed to be connected directly to the header collectors or can be added into an existing exhaust system. Recommended for racing applications where a muffler is required without a set decibel limit to be met. Please call the Flowmaster tech-line for assistance with specific dB requirements and applications.

More Details

Automotive Item GradeHigh Performance
Body Diameter6.000 in.
Body Height6.000 in.
Body Length7.000 in.
Body Width6.000 in.
ColorBlack
FitmentUniversal
Inlet Connection TypePipe
Inlet Diameter5.000 in.
Inlet Inside Diameter5.000 in.
Inlet Outside Diameter5.000 in.
Inlet PositionCenter
Inlet TypeSingle Center
Main Piping Diameter5.000 in.
MaterialAluminized Steel
Mount TypeUses New Hangers (Not Included)
Muffler SeriesOutlaw Delta Force
Muffler TypeReflection
Outlet Connection TypePipe
Outlet Diameter5.000 in.
Outlet Outside Diameter5.000 in.
Outlet PositionCenter
Outlet TypeSingle Center Outlet
Overall Length12.000 in.
ShapeRound
Sound LevelAggressive
Tip Quantity0
TitleFlowmaster 15450S Outlaw Series Race Muffler - short 5.00 Center In / 5.00 Center Out -Aggressive
Additional Documents
  1. Certificate of Originpdf

See what our community says about flowmaster products

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What made you choose this particular product?
I honestly like it really gives the truck a new sound and wakes it up some
View on Wadie's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
After doing a good deal of research on different mufflers, and running into Summit Racing Equipment's video on Flowmaster exhaust series comparison video, I decided on this Super HushPower 2 muffler, which ended up being the right choice!
What were you trying to accomplish by adding this product?
My old exhaust system was rusting out (but not severely), so I thought it would be a nice project to get rid of it in favor of a lighter, better-sounding custom setup. I wanted something very sporty, but not aggressive, or too loud.
Was it easy install? Any installation tips that will help others?
Mostly yes because this part of the exhaust project was easier to put up with than the glasspack--both before and after making changes. This one was a bolt-on both times. It is secured with v-bands in case I want to swap it out, or remove it easier when I want to do something in the rear, such as dropping the rear subframe, for example.
Once you’ve had a chance to use the product, did it meet your expectations?
At first, my expectations were rather mixed. It was a bit louder than I expected before installing the glasspack, and the raspiness was more of a thing before I rearranged the exhaust to have the muffler closer to the rear. Moving it to the rear gave it the more preferred low-tone, "burbling" exhaust note I was looking for, but either way, it always sounded good--especially with a glasspack. I was even told by a few people that it sounded like a V10, noticing how similar 5-cylinder and V10 engines sound!
Any additional comments?
Definitely a nice, lightweight, and not-too-loud option for custom exhausts! It is on the quieter-end of the Flowmaster exhaust aggressiveness spectrum after all.
View on Neo's build
Connor Martin

66

Connor Martin
2015 Ford Mustang
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
It sounded really good on the car
What were you trying to accomplish by adding this product?
Make the car more vocal but not obnoxious
Was it easy install? Any installation tips that will help others?
I paid someone to install it
Once you’ve had a chance to use the product, did it meet your expectations?
Yes it was worth every penny
Any additional comments?
Very deep sounding exhaust. 10/10 product
View on Connor's build
Gianfranco Estremadoyro

157

Gianfranco Estremadoyro
2009 Ford Mustang
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Loudest axlebacks in the market for the 3V with out compromising the "muscle car" sound.
What were you trying to accomplish by adding this product?
Make my car louder.
Was it easy install? Any installation tips that will help others?
Install was easy to do with the car lifted on ramps in my driveway.
Once you’ve had a chance to use the product, did it meet your expectations?
Met all my expectations.
Any additional comments?
I absolutely love this axlebacks and would recommend them to any 3V owner.
View on Gianfranco's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Highly recommended and great sound.
What were you trying to accomplish by adding this product?
Improved sound over stock mufflers.
Was it easy install? Any installation tips that will help others?
Had them professionally installed also did a resonator delete.
View on Josh's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, cold air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels.

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