XR-1 Cat-Back Exhaust for 2004-2007 STI

Borla XR-1 Cat-Back Exhaust, made to fit the 2004-2007 Subaru STI. Part# 140075 is the more Aggressive "S-Type" Cat-Back™.

Performance Gains

The mellow "Touring" Cat-Back™ exhaust is part# 140053 Borla® Performance once again leads the industry with a high flow performance exhaust for the hot Subaru WRX and WRX STI.

Fits These Vehicles

Features & Specs

• This Cat-Back™ system, Borla® #140075, is custom designed by Borla® engineers for the 2.5L turbocharged 4-cylinder engine with automatic and manual transmissions.
• Winning on racetracks around the world has given Borla® a leg up on the competition with trickle down technology from the world's fastest cars.
• The unique design is a direct bolt-on fit that meets all emission requirements.
• The system has shown significant flow and performance improvements by virtue of Borla® XR-1 patented technology utilizing 3" tubing that exits with a super looking Borla® logo embossed 4"angle cut, rolled edge, single round polished T-304 stainless steel tip.
• More flow means more power, and if you tune this turbocharged super import, that flow will simply allow even more power.
• When you get a close look inside this muffler, you can see the patented Borla® XR-1 multi cores -- that look says total performance.
• Warranty: Please contact us for warranty details on this product.
• Brand: Borla
• Part number: BOR140075

Straight from SubiSpeed

Catback systems change how your car sounds more than how fast it is. Check emissions rules where you live before you swap anything upstream of the cat.