Berger JB-4

[Don50BMG]

Thinking of installing a JB-4 engine tune on my RHO, any one have any experience with this product and is it worth installing it thanks .

 

[Irongoats]

I'll be that guy, yes multiple people have use the search option.

 

[tbolts10]

Thinking of installing a JB-4 engine tune on my RHO, any one have any experience with this product and is it worth installing it thanks .

C'mon Don!

 

[Jdmdc5teg06]

There’s a whole thread or two, or three, or maybe more on that exact subject.