I just did something different i tool my k and n out of the air box (89 gta) AND i put it on the end of the intake and super glued it up then but it have way in the box :this is what changed about my car it shifts higher than before pulls harder in higher rpms but it has a rough idel moves around about 300 rpms sometimes up some times down.wtf -----i'm ready to move on with mods i don;t need more problems