Cobb 3" WRX STI Cat Back Exhaust System
[COB 512100]
 Our Price: $675.00
Login for Wishlist


Description:Cobb 3" WRX STI Cat Back Exhaust System
[COB 512100]
Cobb's new system is constructed entirely of high-quality T304 Stainless Steel, from the hangers to the flanges. The COBB WRX Cat Back Exhaust system replaces everything after the stock catalytic converter with smooth, 3" mandrel bent piping. The system is tastefully finished out with a specially designed, robotically welded Stainless Steel Muffler directing the exhaust gases out a double-walled 3.5" tip featuring an embossed COBB logo. The results are improved performance and a nice, sporty sound – not obnoxious or buzzy. 100% Emissions Legal and Subaru Warranty Friendly.

Click Here for A Sound Clip Inside

Click Here for A Sound Clip Outside

Export this product as a PDF Export and print this product as a .pdf file:

Product Reviews
Dustin Holland - 09/23/2008 5 of 5 Stars!
2002 WRX Wagon w/ hitch Exhaust tip clears hitch by about 1cm. Polished SS really looks good. I have a Rotary 2-post asm. lift, and it took me less than 10 minutes to install once I lifted it. Hanger supports are easy to mount. SOUNDS GREAT (outside) and, nice and quiet in the cabin at idle and cruising, good deep tone when accelerating. I chose this system because it has the best noise/power-increase ratio, and is SS so it should last a bit.
Robert Walker - 09/23/2008 5 of 5 Stars!
Excellent exhaust. Not too loud, but definitely gives you a satisfying boxer rumble. Easy 30 minute install with ramps and proper tools. Also looks beautiful, shining out from your bumper. I think it even gave me a little bit better gas-mileage? Love Cobb and this exhaust.
Eric Weinhold - 03/26/2007 5 of 5 Stars!
The Cobb 3" WRX STI Cat Back exhaust is a great exhaust for people who want to unleash the sound of the great boxer engine but want to keep a close to stock look. Instillation only took about a half an hour and everything fit perfect.
Steve Mongrain - 03/09/2007 4 of 5 Stars!
Great quality in material & craftmanship. Though one hanger bracket was probably a bit off the original location (One of the rubber hangers had to be streched as far as it could go...). Other than that great product. Not too loud & not too aggressive visually either. Just enough to hear the sweet boxer rumble. The slashed tail pipe fits nicely with the bumper curve, which created a nice finished look. I'm very happy with the purchase !
Click to view All Reviews
Customers who bought this product also purchased