has anyone installed one of these yet? It claims to boost whp from 95 to around 140. But it is also almost 3k$, so before i consider purchasing I would want to know what type of improvement in the 1/4mi or 0-60 times.

oh yeah I have a 2000 Jetta GLS.

pretty much like in the other thread ... I'd reccomend vwvortex.com ... personally I would not spend the money to supercharge a 2.0... many others have done it though