I have the 110hp "tow" tuner and it seems to run fairly cool. In the 110 setting and my foot to the floor, I've seen it tickle 1200°F on a dead run to 70. I've towed my boat around in the 90 setting and it rarely got over 900°F on longer hills.
I recently towed a 7000 pound trailer 1000 miles useing the Quad 110hp tune. At 80mph it would sit around 900 degrees. At 70mph it would be around 750. On this trip I had the stock intake and exhaust. Now I have a 4" Banks exhaust, and an AFE Stage 2 intake, so the next time I hook up the trailer, I'm going to try the 135hp setting. Even though I will be running a hotter tune, I am betting with the exhaust and intake, the EGT will be the same or better.
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