Originally Posted by Hansel22

We go to Great Lakes, I had the burger jb4 which wasn't working. After working with terry at burger he decided to pull the plug on the jb4 for the x5m/x6m. I've been loping at dinan but I can't justify spending 3500 for 50 crank HP. I had thier tune on my m3 and it was crap. Hell most of Dinan's stuff sucks.

I was really hoping the jb4 would work on my x5m cause if I had an issues with my truck it took 15 min to remove. I've now been looking at VAC motorsports tune, that's like the jb4. They say that it makes power on the dyno and it can be removed before dealer visits.

I always go to laurel BMW and I don't know how'd the feel about a tune on this as far as the warranty goes.