|
jb4 questions
so I'm in the market for a tune and was really considering the jb4 but u have a few questions..would be greatly appreciated if answered
1.is it difficult to install even for a beginner
2.when car is due for service can you get away with the dealer unknowing that the jb4 is present
3.if u have the jb4 do you have any regrets
thank you
|