If I owned a 2.slo and wanted decent power I would definatly go with the Bahn Brenner kit. Stage III is capable of 250+ whp

heres a link to it.
http://www.bahnbrenner.com/vw_audi/B...KIII_2_0L.html

Its a little price but if you got the money its a great upgrade.

You might wanna also check out The Vortex and do some research they have all kinds of info there if you search for it.

Lee