Originally Posted by Norwegian Wolf
And here in Norway the limit of the grey isn't very tried out, because almost everybody use bigger injectors than grey if they go past greens..
I think nowaday's people tend to skip greys and go straight to a larger siemens style injector.....bit like how people skipped using the old 355 light green's and just went from yellows to 803's insted. Im on greys for running in but dont expect to see any more than safe 430bhp out of my hybrided T4 spec tbh with them fitted.