As far i can tell, throttle position module, just opens the gasvalve quicker, not gaining extra torque/ horsepower, but a tune via ECU, unleashes the horses in your motor.
I have no 1st hand experience with the throttleposition thingy, but I flashed my ecu by a Dutch Race specialist, who made a tune right on te ecu, and that makes a huge (read HUGE) difference.
Factory wise, the engine is not showing it's full potential..
Only my two cents, The tune, and a straightpipe with an akropovic endpipe, no cat, are my two motor mods, and man this thing goes, :spyder2: :2thumbs:use only premium fuel tho, as it's readily available here, in the netherlands