[cyaford]

Hey Sean. I'll be calling later today after my shift ends to place the order. Is there a "re-learn" required after installing a tune to the pcm? I was wanting to dyno the car with the factory tune, and then download the "93" tune and dyno again. In other words, do I need to install the "93" tune and drive around a while before dynoing, or can it be done on the fly without a re-learn? Thanks!