The tuner if I purchase just that and decide to upgrade my air intake and exhaust is there a change in the tuning ? If so is there a charge to upgrade the tuner ? ( Matt, 10/28/2019 )

The only modification to the exhaust or air intake that would require a change in the tune would be if you added long tube headers. There is no charge for updating the tune.

I have a 2011 Jayco grayhawk. much to my surprise it has banks headers on it, which I had to change the passenger side exhaust gasket on it. very hard to do, not much room. it has the v 10 2v. engine. the rig does very well now with the headers on power and hill climbing, but does require some down shifting. how much will this improve my performance. thanks. ( tom , 10/07/2019 )

The tuning will make a big difference! Not only will it make more power but it will also dramatically improve the shift patterns, which is a common complaint.

Two quick questions:
1. Will this (UPFord) work on my Class C (2018 Ford Quantum-31LF) on a 2017 Ford E450?

Thank you in advance, ( Camilo , 10/01/2019 )

Yes this will work on your vehicle.

Hi I have a 2014 Ford e350 class c rv just wanted to make sure it will fix thank you ( Chris, 08/01/2019 )

Yes it will!

I have a 2014 Forest River FR3 30DS class A and was about to buy the 5 Star tuner. what is different about your tune? ( adam harris, 07/24/2019 )

Both 5 Star and us use the same hardware (SCT) but our tuning calibrations are of our own creation. From what I understand, 5 Star does not do much to increase power throughout the RPM range, only at wide open throttle. They do not map the ignition timing or fuel tables, which we do. All of our tunes are custom to the vehicle whereas their's are pre-loaded to work on a range of vehicles. With either ours or theirs, you will experience better shift points.