Hey Dj,

I did not use a spacer, I cut into the intake manifold where the exhaust runner space is. You also have to jb weld the hole or you will have an open exhaust from your lim. It depends what kind of turbo you are using for the hybird and if your are just going to upgrade the wheel and port the compresor housing. I had to grind part of the compresor housing and lim to make it fit. Had a s5 stock turbo manifold and s5 hotside.

I just unbolted the chra and used the s5 turbine wheel with the new turbo. So s5 turbo manifold and hot side, with t3/t4 chra (cartrage (sp?)) and compressor and turbine housing.