I own an 04 STi, and am interested in getting my wastegate ported to prevent boost creep when I put on a downpipe with high-flow cat. I was wondering if there were any recommended shops in the Bay Area to get this done at? Please include price quotes if possible.

A kinda off topic question, but does anyone know if a ported wastegate and TUNE is necessary for a turbo back exhaust? Is it possible to just run the downpipe w/ ported wastegate ?

 

just go to gruppe-s they can port your waste gate for ur vf39. Oh and if you are planning to just run ur dp w/accessport. That is no problem.
Raymund

 

yeah, just go to gruppe-s, mike'll hook it up