GTR turbo... posted by Sketch on June 16, 2011 at 11:16 AM
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As far as the R32 turbos go..the exhaust flange is different, you would need to modify your stock manifolds to have the appropriate flange. Where the intake pipes bolt up are clocked differently, you would need to cut, clock and re-weld the intake pipes. Outlet from the turbos will need to be modified. Oil drain tubes will need to be modified to fit. You will need 5bolt down pipes.
All in all, probably not worth it, unless you're looking for a project. I would just go with some sp500s or larger. I haven't gotten any dyno numbers since I've put these turbos on so I can't give you any real comparison between them and stockers.