Without a Dyno its hard to qualify the power and torque gains but pulling the hills in the poconos and upstate NY towing a 2 door wrangler with the cruise set at 68 i would drop down to 50-55 in spots now cruise maintains at 68-70. In addition there is power to pass on the left as well. As far as mileage, we typically average 12.4 fully loaded and the past trip was 12.9. The programmer uses a hand held tuner so you can switch back to stock program at anytime. Renntech is a huge MB dealer in Florida so I am confident they know how to tweak the ECU without causing component failures. Being in the Diesel engine business my whole career I haven’t seen much warranty denied unless it was a clear maintenance issue.
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Ken and Elaine
2020 Isata 3
2014 Jeep Wrangler Sport
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