Looking to have your engine tuned? At Guhl Motors, we offer EFI tuning services based on data collected while you race on the track. This approach to tuning requires data acquisition to gather statistics, which can be sent to us for editing your tune to your exact specifications. To make this process simpler for you, we have created a new form that accepts data files from your MorDefy/WiDefy or GT6. Please note that this form only accepts .mortd, .ftm, and .ftml file types. You can access this form below or on our EFI Tuning page (Services -> EFI Tuning), where you can also find additional information about engine tuning. While we can also tune on the dyno, EFI tuning based off of track data offers a newer and more streamlined approach to achieving your perfect engine tune.