ATC kit won't make you ECU throw more fuel. ATC won't change any fuel, ignition, or air in you ECU mapping. ATC simply amplifys or shrinks the signal being sent to throttle regulator to let you have faster or slower response.
We do get a lot of comments saying throttle controller is a piece of junk doing the same thing that our right foot can do. This might be right for all the turbo monster car w/ loads of HP&TQ. Cuz they won't feel the difference of that 0.5 secs. However, for all the NA folks, that .5 sec is essential at launch or initiation.
Thinking about cutting a corner, you right foot has more time to switch between brake and acceleration. That means you can brake later before the corner and get out the the corner faster w/ just a light tap on acceleration.
On the other hand, the Eco mode is very good for stop-n-go city driving.
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