Twin scroll turbo, comes on fast, hard and doesn't run out of puff. Probably on a 2.5l you could go the next size up. You'll need headers, up pipe and sump. But massive difference.

Ill try and find stiv6 thread about his blouch.

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Wide Body GC8 WRX
#217 Street Cars WA
Full 04 STi drivetrain
08 JDM 207
Garrett 3076 xtr