Originally Posted by daisy16905
With the new M3 being a naturally aspiring 4.0 liter putting out 420 HP, I don't see much potential to extract much more power out of it (BMW's engineers goal is to get above 100 HP per liter and they got 105, so I don't see much left). The other issue is with the high compression ratio required to get those #'s, you would have to give some serious $$$$ if you wanted to go forced induction.
+1 a totally different car.
2010 AW e90 328i: 6 speed, Black Leather, Dark Wood trim, ZPP, ZCW, ZVP,ZSP, Nav, Xenon
BMW Performance CF Rear spolier and Gloss black grills
2008 Candy White MKV GTI 2.0T 6 Speed Manul Gone
2008 AW X3 3.0si: 6 speed Returned
2006 AW e90 330i: 6 speed Dinan Stage 1 Returned