My New 2013 Nismo

Originally Posted by jcosta79

All done with tuning. Your gas pedal is not physically connected to the throttle body. Stock programming will only move the throttle body a fraction of what your foot is actually pushing on the pedal. This is done so that your average driver does not floor the pedal in first and wrap the car around a pole as soon as they leave the dealership (or anywhere else).

Tuning will remove some (not all) of that delay and allow for a more direct correlation between your foot movement and the throttle body opening.