Did a little bit of talking to one of the reps at ECS Tuning because their site did not list the race N75 for the B5 or B6 fitment. Long story short is here is a cheap and easy upgrade for a little extra boost no matter what level of performance you 1.8t is tuned at.

Home Page > ES#122 Race N75 Frequency Valve - RACEN75VALVEKT-A

can't beat $75 for a couple pounds of boost

 

i can. i paid 125$ for my speedtuning chip in a group buy on this site. I went from 10 psi spike to 20. that makes my cost 12.5$ per psi, yours is 37.5$ a psi. That would mean "pound for pound" (haha) speedtuning is the better deal.