On this page, you are looking at one of Cusco's fine examples of a catch can system. This particular catch can has been designed to trap elements such as harmful oil contaminants or unburned gasoline from entering and causing a buildup in your intake system. And when this happens, it can definitely affect the performance of your vehicle.
DETAILS:
IMPORTANT NOTE:
**This 15mm oil catch can is specific to the 06-07 STi, however, being a JDM part made for a JDM model car there are some slight issues - Late 2006 and all 2007 USDM (possibly other market) STi's have an air pump where Cusco says to mount this Catch Can - You will need to either remove the air pump and use block off plates or relocate the catch can elsewhere to use it**