A lot of the figures over 220bhp that company's give are bull shit sadly. I have a BOB'd car in at the moment for mapping with pretty unrestricted exhausts so will let people know what power it makes when done.

The last BOB made 212BHP at 6500rpm on 95 octane fuel, I ran timing right upto the knock limit in places with perfect AFR so struggle to believe that people get 240-250 with out head work, plenum work or cams. With a revlimit of 7000RPM and better fuel it would probably have made a little more but certainly no where close to 230.

To put this into perspective, the only standard BOB I have seen making that kind of power (232BHP) on an aftermarket management system was a total lie. The 'tuning' company involved messed with the weather station in the dyno so the dyno corrected the power as if the car was at much higher altitude then photoshoped the calibration window on the graphs!!!! Re run on the same dyno several months later the car made just over 190bhp and a little over 200 with some more timing.

The impressive thing about the engine is not actually the power it makes, but the ridiculous AFR you can run without impacting upon driveability. This engine will idle with an afr of 16:1 like stock and cruise at 17:1 which is crazy. Obviously I run with an AFR of 14.7 but it really shows how good the combustion chamber is.

Add throttle bodies or a turbo and the story changes....