I have a couple questions so i will put them all here. The car is a 2000 gt 5 speed. First I am not sure if my car has a tune or not and my question is can I go to the dealer and have them flash my ecu to a factory tune? Second does the ecu cut fuel on decel on this yr/model. The reason I ask is because it feels like an auto when I let off the gas where my 5.0 you could clearly feel the car slow down as well as engine pitch change. Letting off the gas in my 2000 is like letting off the gas in an auto?