Existing Customer - One Additional TuneThis product is for additional custom tunes and is only available to existing Severn Tuning customers who have purchased a custom ECU tune. Tunes are VIN locked to the same vehicle for which the original tune was purchased. Additional tunes can be developed for alternative fuels (91 93 octane, race gas, flex fuel, E85, etc.), emissions compatibility, race off road use, dry wet throttle response, hardware changes, or many other options. One tune: $200