I wouldn't even consider the MS45.1 It was merely a ECU rev that only made it into the US to further tighten emissions. Stick to the MS43 and have it tuned to match the ZHP cams. EU Markets never received the MS45.1 ECU.
Originally Posted by flashtwosix
mini update: The M54B30 ZHP engine is already here in OKC. Maybe I will get it on Monday and not Tuesday.
Without proper/custom tunning or running a dedicated MS43 or MS45 setup I will not run this engine at its max efficiency/performance. However, I will be content if I get some low end performance (especially more torque) while running my MS42 Map. Of course custom tunning or MS43 or MS45 is a MUST but that won't be later down the road.
Good luck on the swap flash!
<-- Mango *F-BOMBS IN SIGS*
Bilstein HD's | E30 M3 FCAB's | H&R OE Sports | F+R strut bars | Self tuned 027 93 octane chip | KoseiK1's on R888's | + crazy OCD maintenance
Last edited by new//M3fan; 01-19-2012 at 03:49 AM.