Good luck on the project. I found it fairly easy to adapt the m45 to the m103. The factory 2.6L m102 is not a great match for a 3,000+ pound car as far as speed goes. But it's a stout engine and it really responds well to boost. A couple of psi makes a really noticable difference. Basically, with the little m45 done right, you won't have a ferarri, but it does make the car feel like it has a bigger engine with a much wider power band. It really wakes up the low end of the short stroke m103. I think you'll be happy with the increase. I'm on vacation in hawaii (YES!) for next week, but I'll be sure to post some pictures of the bracketry and piping when I start putting it all back together in 2 weeks.

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-1989 190e 2.6 Auto (t3/t4 hybrid turbo)