Okay, I got ambitious the other day (being unemployed will sometimes give you time to do things like that).

Anyway, I decided to take my stock intake resonator box and chop it up! I busted it up and cut it with the RYOBI tool to the point I could remove the black *tube* section that runs inside of the resonator box. Well I attached that to the bottom on the stock airbox, and there I have it...a custom cold air intake!

Not sure if I gained or lost HP, but the car is much quieter once again as if I still had the FULL resonator still installed.

 

I know this guy that did the same thing: http://www.TypeR673.com/

 

I did it on my friends '95 GS-R. We chopped the u tube halfway and experimented with Ducting pipe.

 

I did the same kind of thing but I didn't chop the oem tube I just removed it and attached some H.D. dryer hose that is about 4" in diameter from the bottom of the airbox through the fender and snaked it to the front grill.

I noticed more noise and a different power characteristic. A little less off the line, a little more oomph from 3K to 4K then it was the same till around 75K where it just died and had less kick to redline.

IMHO it was not worth it! I did however do this while I already had to remove the resonator to install my Comptech icebox.

I am also lookin at disassembling a stock resonator box "not the one I have now, just in case I want to replace it," and removing the baffles and reglueing or resealing it to see if it feels any different.

Anyway if and when I do anything I will still have an aftermarket filter, The stock filter doesn't seem to breathe as well.

I'd just run a foam filter and keep the oem boxes. They are not really a hinderence from what I see and hear. The real difference with any part of I/H/E seems to be "according to many other R owners" the USDM header. My Spoon 4-2-1 and cat is being shipped as we speak.

Good luck and try NOT to cut apart too many stock parts "at least I woulden't..."

A.