Im currently running a stock eg6 airbox w/ k&n drop in filter, will i notice some power gains going with a aftermarket intake i.e. AEM CAI , what s the best for my setup.

92 hatch,
b18c1
skunk2 manifold
ctr intake cam
p28 mugen
jdm itr 4-1 header
ctr n1 pulley
j's racing lightweight flywheel
exedy organic clutch

 

IMO you wont gain much.... i got a CAI on my car... gained very little....but i spent 50 on filter and tube...so i went for it

 

yes you will notice gains of up to 5 hp... and they just sound so damn cool!!

 

Ive seen some pretty good reports on the Apexi filter, other than that buy an ebay intake. Save your money for some real upgrades.