MagnaFlow Cat-Back Exhaust - Street Series
Fits: 02-05 WRX / 04-05 WRX STI
Auto Parts Store of the Year 2026
Estimated Shipping Widget will be displayed here!
Talk to an Enthusiast
Verify Fitment & Product Recommendations
M-F 8:30AM - 5:00PM
Fitment
Fitment
- 2004-2007 Subaru | WRX STI
- 2002–2005 Subaru | WRX
Description
Description
The MagnaFlow Street Series Cat-Back Exhaust System for the 2002-2005 Subaru WRX 2.0L (EJ205) and 2004-2005 WRX STI 2.5L (EJ257) uses fast-flowing mandrel-bent 2.5-inch stainless steel main piping with a straight-through muffler, exiting through a single straight driver-side rear layout with a 4-inch polished stainless tip. Engineered for MagnaFlow's signature resonant, powerful tone with moderate sound levels, with dyno-proven performance. The direct-fit design bolts on easily with a band clamp. Durable corrosion-resistant 409 stainless steel construction with a mirror-polished 5 x 8 x 14-inch oval muffler; proudly made in the USA. Backed by MagnaFlow's lifetime construction warranty.
- Fits 2002-2005 Subaru WRX 2.0L (EJ205) and 2004-2005 WRX STI 2.5L (EJ257)
- Street Series: 2.5-inch mandrel-bent 409 stainless steel cat-back
- Single straight driver-side rear exit with one 4-inch polished stainless tip (double wall, angle cut, 7.5 in. long)
- 5 x 8 x 14-inch oval straight-through muffler with polished finish
- Moderate sound levels; bolt-on installation with band clamp included
- Dyno-proven performance; made in the USA
- Lifetime construction warranty
- MagnaFlow part 16661
Shipping and Delivery
Shipping and Delivery
Review our Shipping Policy for delivery details, shipping costs and exclusions.
Warranty and Support
Warranty and Support
Return and Refund
Return and Refund
Eligibility, exclusions, applicable fees and exceptions are detailed in our Return Policy. Restrictions apply to special-order and custom products.
Proposition 65
Proposition 65
Proposition 65 Warnings: cancer and reproductive harm www.p65warnings.ca.gov
