I have no experience with them, but I know a lot of us are using Tuned by Frost in Richmond. It's a little bit of a drive, but well worth it from what I've been told.
2008 G8 GT
#338 of first 888
Liquid Red; Premium, Sport Packages
Magnacharger TVS2300 w/ 3.1" pulley, LS9 cam, Magnavolt BAP, LS9 Injectors, SLP 160 Thermostat, Roto-Fab CAI, DoD delete by RPM, Kooks LT headers, Custom cats from MBS, QTP electric exhaust cutouts, UPR catch can, BlueSTAR bluetooth, LED Strip Projector Headlights, 20% Tint. 500 RWHP 470 RWT Tuned By RPM.