Bell Mouth Downpipe WRX & STI 2008-2020 High Flow Cat 524210



The COBB 3″ Stainless Steel Bell Mouth Downpipe delivers big gains by allowing the engine and turbo to “breath”. This downpipe has been designed with a 3″ diameter using minimal bends to reduce turbulence under pressure relieving back pressure for increased horsepower, increased torque and improvements in throttle response with reduced turbo lag. This Downpipe uses the New GESi High flow cat!

Have a question?

Call us at 1-888-290-3213