SKU: B512100 | UPC: 799928864930
Cobb 02-07 WRX/STi Catback Exhaust
The Cobb Catback Exhaust (MPN 512100) replaces the factory system from the catalytic converter rearward on 2002-2007 Subaru Impreza WRX and STI models. This bolt-on upgrade features 3-inch mandrel-bent T304 stainless steel piping that reduces backpressure for measurable horsepower and torque increases across the RPM range. Drivers experience sharper throttle response, reduced weight, and a refined aggressive exhaust tone without interior drone.
Key Features
- T304 Stainless Steel Build: Full construction from premium 304-grade stainless resists corrosion and endures high-heat conditions for long-term reliability.
- 3-Inch Mandrel-Bent Piping: Smooth bends maintain exhaust velocity, minimizing turbulence to unlock 10-15 wheel horsepower gains on stock or tuned engines.
- Lightweight Design: At 32 lbs, sheds over 15 lbs from stock setup to improve handling, acceleration, and fuel efficiency.
- High-Flow Muffler: Oversized 12x9x18-inch chamber with perforated core quiets harsh tones while amplifying deep WRX/STI rumble.
- Dual 4-Inch Slash-Cut Tips: Polished finish adds visual style, positioned for optimal flow and ground clearance.
Product Notes
- Preserves factory catalytic converter and O2 sensor locations for emissions compliance where applicable.
- Clean with mild soap avoid abrasive cleaners to maintain finish.
Installation Notes
- Professional installation recommended.
- Bolt-on design uses all factory hangers and mounts 1-2 hours with basic tools.
- Includes stainless clamps and hardware no cutting or welding required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2007 | Subaru | Impreza | WRX |
| 2006-2007 | Subaru | Impreza | WRX Limited |
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2006-2007 | Subaru | Impreza | WRX TR |
Why Choose Cobb?
- Decades of Subaru-specific engineering from track-proven designs.
- Direct dyno-tested gains backed by real-world data.
- Precision fabrication ensures leak-free fit on every vehicle.
Frequently Asked Questions
- Q: Will this fit my 2005 WRX with aftermarket downpipe?
A: Yes, connects directly to any 3-inch cat or high-flow catted downpipe using stock midpipe flange. - Q: What material and finish does it use?
A: T304 stainless steel tubing and muffler with brushed finish on tips for heat resistance and durability. - Q: What warranty coverage applies?
A: Limited lifetime warranty against defects in materials or workmanship when installed properly.
Shipping & Handling
- Method: UPS Ground / FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Oversized box measures 58 x 14 x 14 inches
- Weight: 38 lbs (shipping)
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