In Reply to: JimC chip claims +17hp. That, combined (more) posted by Noel on May 14, 1999 at 11:23:54:
: with the eurohfm/cone filter could yield as much as +30hp (i'm told). I haven't tried this combo but it seems to be pretty popular around here.
The Euro HFM combo does not work on 96+ M3's. To 'shark' 96+ crs, you have to send off your ECU to Jim where he re-programs it and sends it back to you. Your car will be 'brainless' for about 3 days. It is worth it though...good bit more hp, but the real thing is it really fattens up the torque curve, lots more bottom end, and smoother. Do the Jim C upgrade, add a underdrive pulley, and an open element K&N with heat/turbulence shield and you'll have some nice gains. Look for the post by Chris_P below and what results he got with his 99 MZ3 (same engine that's in your M3 except he has aluminum block).