In Reply to: Re: Oh calm down! :) posted by MR3 on April 23, 1999 at 13:06:19:
: Wrong answer....a drop in K&N makes zippo difference because the airbox is restrictive! A heat sheiled Conical K&N properly placed in front of kidney grill intake yields major difference in HP!!!! See EURO Intake posts for pictures....
What kind of hp difference are we talking here? I doubt that the K&N really makes a noticable difference (maybe 5 hp)...now if you're talking about the whole Euro HFM/Jim C chip setup for an OBD-I M3, then it makes a big difference because you're removing the restrictive stock airflow meter. OBD-II M3's cannot benifit from this though.