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The Cummins DST Switch is required to utilize DST tuning installed by an EZ LYNK AutoAgent.
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EZ LYNK, PPEI
2013 – 2018 Cummins 6.7L
EFILive Custom Tuning, EZ LYNK Custom Tuning, Switches
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Our 68RFE Tuning is strongly recommended to increase the life of your transmission at higher HP and TQ. To find out which transmission you have, pop the hood and stand in front of your truck. The 68RFE has the transmission dip stick on the passenger side as opposed to the driver side.