2004 Mazda RX-8 Exhaust Upgrade Parts
19 parts listed for your 2004 Mazda RX-8 for a complete exhaust upgrade. Choose your trim on product pages to confirm exact fit. A moderate DIY project - estimated 2-5 hours.
Cat-Back Exhaust
(5)primary
Borla
Part # 1014015
Borla 03-09 Mazda RX-8 1.3L Single Round Rolled Angle-Cut Cat-Back Exhaust
$1389.86
GReddy
Part # 10148200
GReddy 03-08 Mazda RX8 63.5mm Dual Muffler Supreme SP Exhaust
$1008.64
Turbo XS
Part # RX8-CBE
Turbo XS RX8 Catback Exhaust (Gen 2 Requires Longer Hangers)
$874.52
GReddy
Part # 10140712
GReddy 09-10 Mazda RX8 CS-GTS Exhaust
$1392.64
Invidia
Part # HS04ZR8G3S
Invidia 04+ Mazda RX8 Q300 Rolled Stainless Steel Exhaust
$1224.02
Mufflers
(14)primary
Fel-Pro
Part # 61348
Fel-Pro 06-15 Mazda MX-5 Miata/03-06 Mitsubishi Lancer/02-05 Honda Civic Exhaust Pipe Flange Gasket
$17.78
Fel-Pro
Part # 61573
Fel-Pro Mazda CX-7 61573 Exhaust Pipe Flange Gasket
$9.20
Magnaflow
Part # 5461334
Magnaflow California Grade Universal Catalytic Converter - 2in ID / 2in OD / 11.375in L
$1236.00
Magnaflow
Part # 49150
MagnaFlow Conv DF 04-08 Mazda RX-8 OEM
$827.00
Magnaflow
Part # 23909
MagnaFlow Conv DF 04-09 Mazda RX-8 1.3L M/T Rear
$788.00
Magnaflow
Part # 5461150
MagnaFlow Conv Direct Fit 10-11 Mazda RX-8 1.3L
$1908.00
Magnaflow
Part # 5461335
Magnaflow Conv Univ 2.25 W-O2 CA
$1460.98
Magnaflow
Part # 5461336
Magnaflow Conv Univ 2.50 1/O2 CA 5in Spun CA
$1267.00
Exhaust Upgrade for Other Mazda RX-8 Years
Other Jobs for Your 2004 Mazda RX-8
Frequently Asked Questions
What parts do I need for a exhaust upgrade on my 2004 Mazda RX-8?
A complete exhaust upgrade on the 2004 Mazda RX-8 typically requires cat-back exhaust, mufflers. This page groups parts commonly associated with that year, make, and model; confirm your trim on product pages for exact fit.
How long does a exhaust upgrade take on a 2004 Mazda RX-8?
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 Mazda RX-8?
These parts are listed for the 2004 Mazda RX-8 using manufacturer fitment data. Some products fit every trim, while others require trim confirmation. Use your trim in My Garage or the product page fitment checker to confirm exact fit.
What brands make exhaust upgrade parts for the 2004 Mazda RX-8?
We carry exhaust upgrade parts from trusted brands including Borla, GReddy, Turbo XS, Invidia, and Fel-Pro. Filter by brand to find your preferred manufacturer.
How much does a exhaust upgrade cost for a 2004 Mazda RX-8?
The cost of a exhaust upgrade for the 2004 Mazda RX-8 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.