juice box

[hecoon]

i have an 08 .
can you tell me what a juicebox does ? and what do they cost

do you have to take it to a dealer to get the thing programed.

i'm having trouble with backfire.
the only mod is a magaflow glasspack muffler.

 

[coz]

backpressure

you might be able to add some backpressure to your muffler and avoid the whole j b scenario. can you post pics of your muffler? in particular the outlet. it sounds like it is TOO freeflowing.

 

[joet82]

Its best, depending on your type of juice box, that you take it to a Dyno able company who have their dyno on the floor, or otherwise able to hold a Spyder. Not all dealers are able to Dyno. And that way they can customize your juicebox at the same time of the dyno.