the difference in changing the mapping from a stock 1g awd is one thing, but changing a modified 2gnt that has a turbo to something else is a different story. the way the turbo kits are set up, they aren't exactly designed to bring out the "economy" in the cars. that kind of goes otu the window when that boost needle goes past 0 . I also may be wrong, but from what I remmeber, our cars don't hav ean igniter. the tach signal comes straight from the ecu. the ecu also controls the egr valve operation, and evaporation canister solenoid operation. the ecu also controls the 2 coil packs on the car. Now, I know the emmissions stuff is not exactly "manditory" everywhere, and you can get individual coil packs per cylinder with the haltech, but it makes it that much harder to pass emmissions with people that have emmissions laws, and obtain the maximum performance from the motor at the same time, while still retaining streetability. It's a lot more of a hassle than a piggy back setup is.
. I also may be wrong, but from what I remmeber, our cars don't hav ean igniter. the tach signal comes straight from the ecu. the ecu also controls the egr valve operation, and evaporation canister solenoid operation. the ecu also controls the 2 coil packs on the car. Now, I know the emmissions stuff is not exactly "manditory" everywhere, and you can get individual coil packs per cylinder with the haltech, but it makes it that much harder to pass emmissions with people that have emmissions laws, and obtain the maximum performance from the motor at the same time, while still retaining streetability. It's a lot more of a hassle than a piggy back setup is.
