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You can increase NA power but it’s orders of magnitude more expensive than with a forced induction motor. Cams, intake, exhaust, valve size, porting the head, ITB’s vs single throttle, increase the rev ceiling and yes- boost the displacement. We’ve done all of these on the M96 motor.
Fitting a bigger turbo and injectors would have taken a couple of hours and been maybe a couple of % of the NA cost.
Haha I'm probably buying a b6 s4 in a couple months. They will have yanked the motor and replaced everything back there. Hope the finished product is impressive and clean because won't be buying it otherwise. I have my doubts.
It's not that easy to increase the power though, is it? It's a NA v8. You'd have to add some kind of forced induction to get anywhere without increasing displacement, wouldn't you?
Anyway I'm getting either that or a Golf R with coilovers and wheels.
Inclined to go with the Golf.