I've got an 04 GTP with no mods besides the fact it is a Comp G, which I don't think that has anything different execpt for the wheels and tap shift?
Anyways I'm getting about 23 mpg down interstate doing 80 mph, and 24-25 mpg down highway doing from 60-65 mph.
If you could, please let me know what you are getting, and with what mods.
I've always been told there is no way to gain horsepower without loosing fuel mileage, but K&N always advertises gains in HP and MPG...
Also if there are any other mods that may help, I've heard about reprogrammed PCMs helping a bit.
Thanks
