I've had my U7198 for years that I run on my '01 2500 HD 8.1L
I just recently bought a U7194 for my '11 5.3L 1500
I bought the PC Interface kit (U7778) with the U7194
Can I use the interface kit on the older U7198?
If so, do I need to restore the factory tune before doing any downloads to the U7198?
I know the 7194 is obsolete but Summit had a really good close out price.
Thanks!