I was thinking it would be good place to mount a BOV but if it gets in the way then I guess that is that. Ive heard that the VNT could overboost
BOV on the exhaust? WTF are you talking about dude? BOVs are for intake pressure when the throttle plates close and it builds too much pressure..
we dont have throttle plates, or BOVs.. scratch that idea.
and no, whoever told you that VNTs overboost, no, that doesnt happen. i never had more than 25psi with the vanes open. if the vanes are stuck closed, or partially closed, then yea, these VNTs make enough boost to blow the head clear off the block..
cutting the EGR port CLEAR OFF is the best way to do things..
gasser manifolds
almost fit with those VNTs. you gotta cut a mounting boss off the intake on #3 intake runner, and you gotta grind the top edge off the EGR port, or cut it clear off like i did, and weld it closed..
but VNTs dont fit easily on a mk2 car like yours.. you NEED special engine mounts to make everything clear like it needs to.
you dont just bolt in a diesel, then bolt up a VNT, and hook everything up with stock parts. the VNT is a fairly in-depth install, in terms of work required..