h22a in 3rd gen is possible but i figure is probably pretty expensive to make it work correctly

however

the b18c1 will probably fit easier than the h22a

but the h22a is significantly less money than a b18c1, and its got more HP and torque

this is assuming you pay the going rate for a GSR swap which is over 3000
compared to 2000 plus shipping for a h22a lude front clip

~boom