Performance pcm

I don't think it will help your trailer at all. You may get more response's if you post in the TV forum.

It depends on what vehicle you have, older OBDI or older diesel, there's some gains in dyno tuning, new stuff, especially gas, there's not much they leave on the table any more.

jfkmk wrote:
Vehicle manufacturers spend millions of dollars trying to meet ever increasing mandated fuel economy standards as well as the public's demand for better performance. Do you really believe that PCM of NC has the engineering resources to pull this off with a tune, but the combined auto industry does not?

The auto industry produces a compromise solution that is best for average users, and meets emissions requirements. They are well aware of what you can do with a tuner. It is possible to get better fuel economy at the expense of power. It is possible to get more HP at the expense of mileage. What the tuners allow you to do is choose. Typically tuners also don't worry about emissions, but allow you to save the factory setting to reload in case you need an annual emissions check.

I think what they are doing is advancing the timing because I notice that some of their tunes require the use of higher octane fuel.

Vehicle manufacturers spend millions of dollars trying to meet ever increasing mandated fuel economy standards as well as the public's demand for better performance. Do you really believe that PCM of NC has the engineering resources to pull this off with a tune, but the combined auto industry does not?

The key words here "they claim".

I have not heard of them.

10 to 14 more HP is plausible. 1 to 3 MPG is not.