Originally Posted by SRT14PimPin07
They should be the same. But from what I have read, people have been having some problems with proceed so I would go with the JB4 only because it's such a popular tune for our cars.
Ive had the JB4 for 5 months now and still no issues. I just installed it and forgot about it....lol "Knock on wood"
......and people have had issues with the JB4. I have had the proceed on my car for some time now and have installed it on other cars. Zero issues at all. I think the guys that are having issues with them are probably installing them incorrectly (loose connections, etc. )