d16y4 right?
No,U cant,I bought a skunk2 IM and b16 TB and was gonna do it but learnt I couldn't.
This explains it best:
I wouldn't bother with a ebay 'custom manifold' either,more than likely it flows crap.
The best U can do is bore the stock TB out to 60mm,from 56mm and port match the IM + bored out,but in saying that,will it work? Unless it's tested on a flow bench,U wont know.
U can get the TB bored out to 60mm for $195,U can port match the IM yourself with a dremel easily because it does not need to be perfect just larger than 60mm,but would U get gains from it???
Nothing is impossible,I mean Dyno Dave got ricer's d16y4 running on Hondata!!!!
http://www.ozhonda.com/forum/showthread.php?t=61690
Anything is possible.
Just need the help.
Greddy e-manage will be a hell of a lot simplier though.
Great gains can be had with an aftermarket IM and TB,sucks we cant use it.