If I had the money at the time I went with the Gen II GTX2860R turbo, I'd of gone the Peron route. The torque comes in like stock, not so much with the ATP Gen II GTX2860R. The top dyno graph is for the Peron, the second one is mine with the Gen II GTX2860R turbo. Big difference in torque peak.
Your location says that you are in CA, just keep in mind that any turbo kit other than a hybrid, won't pass the smog visual.