Thanks for the info HIND. This was partly why I asked if anyone had any dyno figures for their M3W on a dyno other than the Krazy Horse one, particularly as S&S said themselves that 135hp should be easily obtainable. Chris99 mentions, Krazy Horse's own Stage 3 car "only" made 125hp on their dyno......although it sounds like a bit of a beast to drive. I remember seeing it at Shelsey Walsh hill climb and it was a handful.
Just to clarify, the KH car had a big bore kit, 569 cams and larger throttle body. At the time I drove it it had not been setup on their dyno (as it was after dyno Dan had left) but was running default ECU settings for the modifications. 125bhp was Sales Dan's estimate and was probably lower than what it was actually achieving. Also worth noting KH figures are at the wheel
