For over 10 years, no one has been able to simulate what APR's ECU Upgrade accomplishes. Our staff of 10 engineers and 30+ employees has broken the mold of "performance tuning" by developing new technology that allows for the development of the highest quality performance available. APR has revolutionized "chip tuning" with unparalleled innovation. There is only one performance engineering firm that offers software so refined and complete with so many options. There is only one APR.