Exedy Stage 2 Sports Clutch and Flywheel Kit - Subaru Impreza WRX STI EJ20T EJ25T EJ257 01+ 51210-S5T-Z00 Key features:

Key features:

the same sort of benefits can be seen by adding a similar bellmouth (in this case a velocity stack) to the end of your cold air intake

but more importantly

Furthermore

Exedy Stage 2 Sports Clutch and Flywheel Kit - Subaru Impreza WRX STI EJ20T EJ25T EJ257 01+ 51210-S5T-Z00 Key features:Exedy develop and manufacture both replacement and performance clutch kits for a huge variety of vehicles, and in some cases even manufacture the OEM components. Their kits represent the absolute best of clutches currently on the market. The Exedy 'pink box' sports clutch kits are some of the best aftermarket sport clutch kits on the market. Carrying their same OE trusted level of quality as the replacement kits, they're available in a wide variety of