can anyone tell me if and where i can find a gm supercharger for an 2003 cavalier

Hello,
Yes you can get a Gm supercharger for your cavalier with the 2.2 l Ecotec motor. You have to contact a dealership that is an authorized GM performance parts dealer
(not all dealers are). The part # is: 17800003. If you don't know who is an authorized dealer you can visit GM's Goodwrench website and do a search by zip code to find one nearest you. I priced it at a few local dealers here in San Diego and the cheapest quote I got was $2671. You could also go to www.gmpartsdirect.com and enter the part # but I think their's is listed at $2841. Good luck.

2459.95.....paceperformance.com (gm performance) roots style, intergrated intercooler supercharger system.

i ordered mine the other day for 2417.50 shipped

ECOTEC supercharger

in there is a phone # and a name find it and call it!