[BadassBeamer]

I just installed my jb4 stage 2 on my F30 335i and don't really feel a difference. The first two days I felt a major difference but now I feel the car is completely stock. I hear the exhaust pop a little more but no excess turbo swoosh or power. I went back to map 0 for for a day and can't seem to go back to map 1. I'm holding the volume down button for 5 seconds and pressing volume up and still is not working. Is anyone having this problem?

[D.Mathys]

I would try the USB cable. If you don't have one, I would order it. You can do a lot of useful stuff with the JB4 and laptop.

Also i would double check all your connections. If everything looks good and still no map 1, shoot Terry an email. He is quick to respond and should be able to give you a fix.

Originally Posted by BadassBeamer

I just installed my jb4 stage 2 on my F30 335i and don't really feel a difference. The first two days I felt a major difference but now I feel the car is completely stock. I hear the exhaust pop a little more but no excess turbo swoosh or power. I went back to map 0 for for a day and can't seem to go back to map 1. I'm holding the volume down button for 5 seconds and pressing volume up and still is not working. Is anyone having this problem?

[tdizzle]

Unless you have the laptop connection, it's going to be really hard to diagnose any potential issues.

[335if30uae]

get USB cable , get a laptop download the current firmware, check connections..

[anelson524]

I believe you really need a downpipe to take full advantage of stage 2, that is if you want a noticeable difference.