2004 Subaru Impreza Performance Exhaust Mufflers

Your 2004 Subaru Impreza might be the best vehicle you’ve ever owned. Or you may just be struggling to keep it highway-approved. No matter the situation, Advance Auto Parts has the Performance Exhaust Mufflers you desperately need.

We currently carry 5 Performance Exhaust Mufflers to choose from for your 2004 Subaru Impreza, and our inventory prices range from as little as $113.99 up to $227.99.

On top of low prices, Advance Auto Parts offers 1 different trusted brands of Performance Exhaust Mufflers for the 2004 Subaru Impreza. We only sell parts from trusted brands like Flowmaster Inc. so that you can find quality parts you can count on.

Don’t take our word for it – check out customer ratings and reviews to buy with confidence. We have 25 reviews on our Performance Exhaust Mufflers for the 2004 Subaru Impreza from previous customers.

Have parts delivered straight to your home, or find the nearest Advance Auto Parts store to check out our Performance Exhaust Mufflers stock in-person!

Performance Exhaust Mufflers for Your 2004 Subaru Impreza

Flowmaster Inc. – 40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.942441)

40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound

from

$133.99
This two chamber design incorporates Flowmaster’s patented Delta Flow technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over Original 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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(1 reviews)
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Flowmaster Inc. – Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.842446)

Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound

from

$126.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler we’ve ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
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(1 reviews)
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Flowmaster Inc. – Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.942446)

Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound

from

$113.99
Flowmaster’s Super 44 muffler uses the same Delta Flow technology found in our larger Super 40 mufflers. The Super 44 delivers a powerful rich tone and is the most aggressive, deepest sounding, highest performing four inch case street muffler we’ve ever built! Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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(3 reviews)
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Flowmaster Inc. – 40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound (Part No.8042441)

40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound

from

$123.99
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you’re looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – DBX Muffler, 2.5in Center Inlet 2.5in Center Outlet, 14in long, Non-Reversible, Moderate Sound (Part No.12514310)

DBX Muffler, 2.5in Center Inlet 2.5in Center Outlet, 14in long, Non-Reversible, Moderate Sound

from

$227.99
dBX series mufflers – this Laminar Flow internal configuration muffler features the revolutionary HP core design delivering excellent sound control for a wide variety of engine types where vehicle under-chassis space is limited. Utilizing cool shell technology to minimize radiant heat from the muffler body, they are perfect for sport compact imports as well as muscle cars and other performance applications. Constructed with 409S stainless steel internal components and wrapped with a proprietary insulation material and finally a polishable 304 stainless steel casing, these mufflers are as attractive as they are functional delivering a moderate to aggressive tone.
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FAQs for 2004 Subaru Impreza Performance Exhaust Mufflers

What are the most popular Performance Exhaust Mufflers for the 2004 Subaru Impreza?

With 1 brands you can trust, our most popular Performance Exhaust Mufflers for the 2004 Subaru Impreza parts are:
40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
from $123.99
This product is not rated
40 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
Performance Exhaust Mufflers
Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
from $113.99
(3)
Super 44 Series Muffler, 2.25in Offset Inlet 2.25in Center Outlet, Non-Reversible, Aggressive Sound
Performance Exhaust Mufflers
DBX Muffler, 2.5in Center Inlet 2.5in Center Outlet, 14in long, Non-Reversible, Moderate Sound
from $227.99
This product is not rated
DBX Muffler, 2.5in Center Inlet 2.5in Center Outlet, 14in long, Non-Reversible, Moderate Sound
Performance Exhaust Mufflers

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