i hear tell tales of the 4g setups from mitsubishi......that the ports and the studs line up perfectly on the exhaust side of the block on f22s.....never seen it just heard some rumors.....

 

yea a bunch of people run dsm manis on their f22's. I believe it needs slight modification though.

 

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yeah i have heard about that as well. but same here never seen it before.

 

It doesn't fit perfectly. I had to redrill 3-4 bolt holes.. the ports aren't a perfect fit, but within 1mm, I'd say about as close as a factory cast POS tolerances are in the first place..

The engine will hold up fine to boost, its all about tuning.. My H23(identical block) has been on boost for 1.5 yrs so far, no problems.. its because I have tuned it well and safely.