2004 Subaru Legacy Exhaust Upgrade Parts
32 parts verified to fit your 2004 Subaru Legacy for a complete exhaust upgrade. A moderate DIY project — estimated 2-5 hours.
Headers
(4)primary
Fel-Pro
Fel-Pro 15-20 Subaru WRX/13-20 WRX STI/17-20 Toyota 86 Exhaust Manifold Gasket Set
$13.36
Victor Reinz
MAHLE Original Saab 9-2X 06-05 Exhaust Manifold Set
$15.30
Victor Reinz
MAHLE Original Subaru Baja 06-04 Exhaust Manifold Set
$16.54
Fel-Pro
Fel-Pro Subaru Outback MS 97210 Exhaust Manifold Gasket Set
$14.26
Mufflers
(28)primary
Victor Reinz
MAHLE Original Subaru Impreza 05-02 Exhaust Pipe Gasket
$9.25
Magnaflow
MagnaFlow Conv Univ 2in Inlet/Outlet Vehicle Specific CA OBDII
$327.00
Victor Reinz
MAHLE Original Subaru Legacy 05-04 Exhaust Pipe Flange Gasket
$7.12
Magnaflow
MagnaFlow Conv DF 04-05 Subaru Legacy / Outback 2.5L
$621.00
Magnaflow
MagnaFlow Conv Universal 2.25 Rear with O2
$517.00
Magnaflow
MagnaFlow Conv DF Impreza 2.2L Front Conv
$596.00
Magnaflow
MagnaFlow Conv DF 99-05 Subaru Forester/96-97 & 99-05 Impreza/01-03 Legacy/00-05 Outback Front/Rear
$693.00
Magnaflow
MagnaFlow Conv DF 95- 96 Impreza 2.2L Rear
$372.00
Exhaust Upgrade for Other Subaru Legacy Years
Other Jobs for Your 2004 Subaru Legacy
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2004 Subaru Legacy?
A complete exhaust upgrade on the 2004 Subaru Legacy typically requires headers, mufflers. All parts shown on this page are verified to fit your specific vehicle.
How long does a exhaust upgrade take on a 2004 Subaru Legacy?
A exhaust upgrade typically takes 2-5 hours and is rated as moderate difficulty. Actual time may vary depending on your experience and the specific parts being replaced.
Can I do a exhaust upgrade myself?
A exhaust upgrade is a moderate DIY project. If you have some mechanical experience and the right tools, you can handle it. Otherwise, consider having a professional do the work.
Are these parts guaranteed to fit my 2004 Subaru Legacy?
Yes, all parts on this page are verified to fit the 2004 Subaru Legacy using VCDB fitment data from manufacturers. Our fitment information is cross-referenced with industry-standard vehicle databases to ensure accuracy.
What brands make exhaust upgrade parts for the 2004 Subaru Legacy?
We carry exhaust upgrade parts from trusted brands including Fel-Pro, Victor Reinz, Magnaflow, Cometic Gasket, and Turbo XS. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2004 Subaru Legacy?
The cost of a exhaust upgrade for the 2004 Subaru Legacy depends on the parts and brands you choose. Browse the parts on this page to see current pricing. Doing the work yourself saves significantly on labor costs.