Max Energy Power Programmer - Part #32004 Performance Gains Premium Octane: +20HP +24TQ Regular Octane: +12HP +19TQ Adjustable Features •Shift Firmness Yes/No •Shift Point -500 to +500 RPM •SpeedometerOdometer Correction For Tire Sizes 24-54 inches 1/4 inch increments •SpeedometerOdometer Correction For Gears 2.56, 2.73, 3.08, 3.23, 3.42, 3.73, 4.10, 4.56, 4.88 & 5.13 •Top Speed Limiter 81, 87, 93, 99, 106, 112, 118, 124, 130, 149, 168, 186 MPH •Rev Limit 5500 to 6600 RPM in 100 RPM increments •DTCs Read and Clear •Return Back To Stock •Internet Updateable