It's super tight with a s54+e36 chassis...i say it can go 50/50 when it comes to fitting the off-the-shelf manifolds(steedspeed). Might need a custom passenger motor mount arm to make more room on the passenger side for the manifold +turbo+piping.
In the e36 if one wanted boost would of been better to just stay with s52/m52+turbo but steve knows that
