I purchased the module for my 2010 Revolution LE 42T early Jun 2023 prior to our vacation trip to Julian, CA. I have a 400 Turbo Cummins in our coach. Near Pahrump, NV, we and noticed a significant increase in power. I maintain 55-60 MPH up hills without putting my foot in it and that was really nice. (I travel in the Coach cruise at 65 MPH). We took SR 79 towards Warner Springs which is pretty windy and very hilly. The performance was very good. Pedal response to power excellent. The climb up from Santa Ysabel was surprising, to accelerate to 50 and climbing that I had to lay off the pedal pressure. The only drawback is that I haven’t seen a mpg increase yet. BTW, besides my coach, I had my custom tow dolly with my buggy and my Toyota 4X4 in tow.

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