Some spec b's came out with a fatboy turbo. Your car will have a vf40 and will max boost in si drive at around 0.7bar. We currently tuned my car to 1 bar boost. The nice part is if you know the cars gears and clutch you have a very mean car. Only downfall is clutch. If it goes instruct them to install a sti clutch. Warren at subaru centurion did not do this in my car. Went back 3 times for clutch repairs.
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