LOL...they have a long list of dealers :
http://www.tbo-turbo.com/dealer.html
to go with there Goodies !!!!!
P.S The 2001 WRX PPP is a piggy back GEMS boost controller soldered inside the ECU and patched into the boost control circuit. There are no fuel or timing mods so suprisingly crude for an official Prodrive product.
Basically it was rushed through for the PPP on the UK300 to satisfy customers hankering for the delayed release of the STI.