[urr2slo]

Dynatech's, all 3 are quality pieces, but after installing all 3 I found the quality, fit and finish slightly better on the Dynatech's and they consistantly make slightly more h.p. after the tune, stock or modified engines. They just seem to work the best.
Regardless of which you get you wont go wrong. I went with Dyntech's on my personal Camaro after trying them all on clients cars, I have 40k on them with no issues.