Is it something similar to this? This is sweet.
http://www.pfyc.com/pc/GA3017/GAUNDER/RSM+Supercharger+Kit.html
Stage I RSM Supercharger Kit includes a Vortech supercharger, all brackets, oil lines, belt, pulleys, custom PCM programming, adjustable blow-off valve, FMU, induction piping and a K&N cone filter. All the parts needed for the install are included in the kit, no need to buy anything else! Gains of over 60 HP at 6 PSI with no other modification on the 2.4L or 2.2L engine.
So, is this the one you are talking about.