Quote:
Originally Posted by Jcali86
I didn't know that, thanks, are we sure it's the OPF and not a different tune to account for the OPF? Just curious as that's a large difference!
|
The 10 KW difference for the M340i is still present I believe.
I believe the rather large difference for the Z4 is/was due to packing issues for the OPF, i.e. BMW couldn't use the same exhaust treatment package as for the M340i (but a smaller one I guess) so they had to massively detune the engine in order to follow regulations.