Get a dyno tune. Around here (Dallas), it'll run you around $500, give or take. A remote tune, or a canned tune, cannot possibly be as well fitted to your car as the product of a competent tuner working on your car, in real time, on a dyno.
Failing that, I'd go with Performance Autowerks (aka, PAW, aka Werks). I've dealt with them for 5 years and have never had an issue with any of their products, their customer service is amazing and *very* responsive and Dave Gilbert is a badass.
I was also disappointed with the RPM tune that I bought awhile back. Dyno reported numbers way less than the GMPP tune would've promised (and yes I'm adjusting for whp vs bhp, with a generous margin). With PAW's tune, I went from 30whp less than a friend with an identical setup (except for axel-back exhaust) to having to brake to avoid rear-ending him on an on-ramp.
Blue-ish 2006 2.4, Werks stage 1 turbo, Borla cat-back, DDM braces, Spec aluminum flywheel, Spec stage 2 clutch, Werks aluminum radiator, some gauges, RKSport hood, Morimoto FX-Rs, GReddy Profec, Norm's fenders
'07 GXP, Werks Big Wheel K04 and tune, Solo catless downpipe, TCE Wilwood 6 piston front brakes, 4-piston rears , stainless brake lines, slotted/drilled rotors, BC Racing BR coilovers, Performance Autowerks intercooler, DDMWorks CAI, charge pipes and braces, RPM rollbar
Last edited by raygun; 09-10-2019 at 04:18 PM.