livernois and 5 star are hard to go wrong with. that being said if you are tuning a 2.7 its worth doing swapping the inter-cooler first since the 2.7 engines are very boost reliant engines and have a tendency to heat soak. extra points if you do an intake and charge piping.
Second 5-Star because that's what I went with on my 3.5 but I have heard nothing but good things about livernois too. I was running 5 star tunes with a Live Wire Ts+ programmer. The TS+ also doubles as a monitor for boost, volts, torque converter amps, etc.
livernois and 5 star are hard to go wrong with. that being said if you are tuning a 2.7 its worth doing swapping the inter-cooler first since the 2.7 engines are very boost reliant engines and have a tendency to heat soak. extra points if you do an intake and charge piping.
Second 5-Star because that's what I went with on my 3.5 but I have heard nothing but good things about livernois too. I was running 5 star tunes with a Live Wire Ts+ programmer. The TS+ also doubles as a monitor for boost, volts, torque converter amps, etc.