Performance Gains 91 Octane: +8HP +15TQ 93 Octane: +12HP +20TQ Adjustable Features •SpeedometerOdometer Correction For Gears 2.56, 2.73, 3.08, 3.23, 3.42, 3.73, 4.10, 4.56, 4.88 & 5.13 •SpeedometerOdometer Correction For Tire Sizes 24-30 inches 1/4 inch increments •Top Speed Limiter 25 - 75 MPH in 5 MPH increments, 81 to 255 MPH to match speed rated tires •Rev Limit 6100 to 7100 RPM in 100 RPM increments •DTCs Read and Clear •Return Back To Stock •Internet Updateable