[JRTJH]

I would advise not to install a "chip" in any modern gas engine. They are typically tuned by the factory for a compromise between performance and economy, with the engineering to protect the vehicle drive train from damage.

Installing a "chip" will likely put your vehicle warranty in jeopardy as well.

With your truck/trailer combination, I'd suspect you won't see any need for increased performance and will find that "chipping" your truck won't give you any significant advantage.

The potential disadvantages usually outweigh the advantages for most people who tow "realistically matched" rigs.