After reading the Harman Automotive Dyno tests on three different intakes, a Typhoon intake was choosen as part of the Cobb Stage II install.

The Typhoon Requires assembly, but nothing too terrible. The car has better spooling and offcourse, you can hear the blowoff valve and turbospool very easily.

NOTE: One thing we do recommend is to reset the ecu by disconnecting the battery and verifying AFR readings after installing the intake. It seems like some STI'S run a little leaner from the factory--specially the 2007 models. If you don't have a wideband, we recommend getting a wideband from zeitronix,innovatemotorsports,or other great companies.