[Power Hungry]

David,

First, make sure to indicate both ECM and TCM hex codes on the upgrade form. This helps us to build the matched set of files.

In most cases, the only mod we usually recommend is to go with a larger downpipe to help reduce some backpressure and EGTs. It's not necessary, but it does help provide some headroom for towing and you can usually end up running a slightly hotter program under the same conditions.

Please know that the reliability of your engine and transmission is just as important to us as it is to you. We make every effort to ensure that even our higher output programs are safe for the drivetrain. With this in mind, if you keep power levels at 100 HP or below, you should be fine.

For daily driving, a 75-80 HP program usually provides the best combination of driveability and fuel economy. For towing, particularly at altitude, I'd stay in the 60 HP range unless you're pulling over 8,000 to 10,000 Lbs. in which case I'd drop to a 40 HP program.

I hope this helps. If you have any other questions, let me know.

Take care.