A 1999 V10 would have the 2 valve head design which we see gains of 43 HP and 47 lb-ft torque. We constantly get feedback that the cost of the tuner is well worth it for the benefits that it provides without any real labor involved. The SCT X4 device does have monitoring capabilities, so if you are wanting to use it as a scan tool you can.

We will only need to re-tune for the long tube headers, there is no charge for this.

Yes we have just the tune available to purchase here: https://www.ultrarvproducts.com/Ford-V10-UltraPower-Tune-Only

You can still enter in the X3 serial, we can make a tune for that still.

We no longer need the strategy code before making your tune, just the VIN for the chassis.

We would gain you 43 horsepower and 47 lb-ft torque with our tune. As far as your warranty goes, it will not void it automatically. First of all, when you tune your vehicle the, SCT Tuner stores the stock file onto the device. When you are going to go in for Warranty work, you can return the computer to stock settings. The SCT tuner, unlike other brands, leaves absolutely no footprint in the PCM history. In order to deny any warranty repair the dealership has to prove without a doubt that the tune was the cause of the damage. We can thank the Magnusson-Moss Warranty Act for this.