Mid 14s is chip only. GIAC or APR has good ones everyone will tell ya. Some ppl have one low 14sw/ chip only, (I did 14.1 @ 100 in a jetta)so it is that big a deal. Dont do a boost controller, the chip is FAR better as a tune, and a B.C. doesnt change enough, just adds pressure, thats bad.
Try VWvortex.com READ alot first, dont reply as a noob too much or you'll get thrashed...dont strat topics like "which chip is best" etc etc Its a purist VW nazi style site where everyone thinks they know something, most do, not many like they think though. Also google "club 1.8T" it is a site that has alot of info for newbie 1.8T owners.
This site is also good w/ the closer knit VW group, Paul/Admin has good ties w/ EPG for parts also.
Hope this helps,
Greg