Originally Posted by doogee
Back when I just bought my 328is, it dynoed 198rwhp on a Dynojet with the only mod being an M50 Manifold.
But cams and a tune took it to 220rwhp.
If this is the case, assuming a 15% driveline loss of power, then with cams and a tune, the engine puts out roughly 260hp at the crank.
Next question is why do some bother with an S52 swap, why not just go this route?
Are cams and a tune expensive?