Towing Limit on Perf Tune

[ak_cowboy]

I recently heard that the max towing weight on a performance tune is only 2500lbs. After reading through my owners manual I saw no mention of a weight limit, only that it's recommended to switch to the tow tune.
When I got my custom tunes I made sure to mention I tow heavy loads at times and my max tow is 9200#.

Am I really limited to 27% of my max tow? I don't have a warranty to worry about and trans/water temp gauges to monitor...