EQT Power Pack Stage 1 (02-07 WRX/STI)
This is the first step in modifying your STI for better performance. This package will greatly improve the overall response, smooth out drivability, improve fuel economy, and improve overall reliability...
Cobb Subaru Flex Fuel Kit (07 STI)
A complete plug and play solution enabling users to convert their supported Subaru WRX or STI to a Flex Fuel configuration. This is the easiest to use and most sophisticated...