Just looking for more information from people with personal experience as to what kind of gains they had and what companys/shops provide this type of service.

I know import builder will port throttle bodys and Intake Manifolds for around $550 after you send it in "ITR spec". But ive also heard there are numerous other shops that provide the same service. "And no, they no longer include the pieces for that price and portwork, its portwork only unless you want a blox intake manifold"

Just looking at more options and id like to hear what kind of results you had with them. Its certainly not cheap so id like to hear from people with experience in the matter.