Has anyone here on ephatch tried the RBC mani + 65 or 70mm throttle body on a stock k20a3? I've been reading it up over on CRSX and it looks like some members were gaining 15-20 hp with these two mods. Just wondering if anyone knows more about it? Any input is greatly appreciated.

Cliffs:
1) k20a3 w/ RBC + 65 or 70mm throttle body
2) gains of 15-20hp?