Truck Repair: ECM download 500 hp Cummins in a RV

Question
How much should it cost to download the ECM on a Cummins engine in a RV?  How much should it cost to do the 130 K overhead service on the same engine?  It currently has 96,000 miles on it...Thanks

Answer
I've heard it costs about a thousand to uprate your ecm. Most overheads are around 300-600 yours might be a little higher since it's a rv. Little more difficult to access. Good place might check for your ecm needs is bullydog or pittsburgh power. Both are leaders in the industry.