I was looking into getting a supercharger for my b5 2.8 and I found this one PES G2 Supercharger System for 1998-2001 Audi A4/A6 with 2.8L 30V for almost 3,500 are there other superchargers out there that are cheaper if so please tell me any insite would be appreciated

 

Nope, unless you go custom and design/fab your own, look for a used G1 or G2.

 

Those 3.8L superchargers are about the cheapest you'll find