Stage II

July 05, 2005

Helix WRX Downpipe

I removed the pipe at the top and installed the one on the bottom. You can tell just from the pictures that it will flow better and remove much restriction on the engine by replacing two stock catalytic convertors with one high-flow cat. By replacing this pipe, my car is now sitting with 300 horsepower and is a Cobb Stage II. (For future reference: installed with approx. 17,000 miles.)

Helix WRX Downpipe
A closeup of the catalytic convertor section of the new downpipe.
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