[regal]

Your 15-20hp bump isn't going to come thru tuning alone, the only reason the aftermarket is managing it is because they don't have to go thru regorous gvt. emissions testing. Toyota/Subaru has this engine tuned on the edge of the brink the way is.


My best guess is $30k option with a eaton type supercharger used in the Elise Toyota motor. Not happy with that 'cause they could go turbo with no price increase.