Fitting a E60 M5 MAF to a C230K, any comments or experiences?

[John Jones Jr.]

Interesting about the AFR, I presume the only reason for that is the machinied the S/c pulley along with porting the S/c?

Yeah, thanks for asking. My car is flying, just waiting on a new Cam solenoid/magnet (see my other thread). I did have a slight problem, actually it was a dangerous problem as I lost all boost pressure twice, once while overtaking several cars in one hit, pulling 80+!!! The boost pipe was coming adrift on sudden WOT even with new heavy duty screw clips. Now I've fitted some T-bolt clamps & all seems o.k.. I'll be changing the CPS just in case, worth doing imo, changed the FPR also, got a genuine M-B (Hella) one for €9.