Quote:
Originally Posted by Blacky
Sorry does the Z4 M have a cast iron block, not the Alu/Mag in the 1er?
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The 135i's block isn't the magnesium core aluminum block of the NA 3 liter motors. BMW didn't think the block could handle the power so they went back to the old block.
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'08 Carrera S 6MT Guards Red/Black ext leather, Carbon fiber pkg, sport exh, sport chrono +, PASM, Nav, Bose, 19" forged turbos, red tranny tunnel
'07 MV Agusta F4 1000 R 1+1, Corse Red/Silver, RG3 race pipes and factory race ECU