2017 Mercedes Sprinter, RPM was really helpful with a disabled van, no more problems. The tune fixed it and they did during the holiday break.

I had a countdown timer for an SCR/Adblue system fault. I purchased the delete tune and the guys at RPM got me fixed up. I ordered delete parts and the tune was quick and easy to install. I’m running the xtreme performance tune and the car has come alive. A lot more power that’ll throw you back in the seat. Very thankful for the wonderful support from RPM. They say it could take up to 2 days to get your tunes back but I got mine 5hrs after sending my stock file in. Excellent service and excellent company!

Works exactly as described and helped make my 535d run much better. Arrived super quick and easy to follow instructions. Great communication and any questions I had were answered same day. Highly recommend and will be using again in the future. Special thanks to Lee for following up and checking in frequently on my progress/ status.