Robroy
I think the factory turbo starts to decline from around 450 ish but adding methanol and a Coolmist intercooler water spray bar you could be knocking on the door of 470-480.
The Coolmist alone could give you 10-30bhp just by using chilled water and ice cubes
Nate
I don’t understand the comment on the head studs really odd thing to say, as 300 is less than a factory RS
Putting down 300nm at 3000rpm or 540nm at 7000rpm. So where are the head studs stressed the most erm I think the higher numbers may stress a head stud more; more than a really easy to drive car low down.
Uncle Ben could probably get 450bhp and crap torque from our cars and he cooks rice for a living.
People get blinded by Oooooo a high bhp number, but power without a good useful torque figure is just that …………. talk
RS Edition.
FPM375 Rocks
The rest of the “M” maps suck