Existing Customer - Three Additional Tunes ($100 Off) In addition to contributing to

In addition to contributing to poor efficiency

Project management support and hardware recommendations to achieve end-user goals

See our full write-up for more details and other tuning options

catalytic converters run hotter

ideal for a naturally aspirated engine with modifications ranging from stock to full bolt-on

Existing Customer - Three Additional Tunes ($100 Off) In addition to contributing toThis 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. Single tune: