As the title explains... what is the difference? :? why IS a Z4 so much better for your engine when a u8 gives more power? ps, i now have a z4 :mrgreen: , an a u8 mines for sale if anybodys intrested? any feed back on this post be great... Cheers Lads!
Z4 and UK Prodrive map are near identicle, with the Prodrive Map running slightly more boost. A Z4 ECU will also run fine in a UK and give near UK PPP performance. and has less aggressive ignition maps (very similar to prodrive map) so should be ok on optimax alone. :wink: u8 240bhp :evil: z4 260 bhp :twisted:
