Holley is proud to announce the availability of its new Wide Band O2 upgrade kit for Commander 950 Systems with the Bosch Sensor, P/N 534-197. The new wide band O2 kits plug directly into the Commander 950 harness and allow for infinite tuning to achieve maximum horsepower and torque. The wide band kit makes tuning a snap by giving instant feed back to the commander ECU and the tuner. The tuner can see actual air/fuel ratios from 10:1 to 18:1. Kit includes a small weather sealed unit for convenient mounting, budget minded Bosch LSU4 sensor, and a certificate to upgrade an older 950 ECU to the Commander “PRO” software. For more information contact Holley Tech Service, P.O. Box 10360, Bowling Green, KY, 42101-7360, Telephone 270-781-9741. For nearest dealer: 1-800-HOLLEY-1. Or visit us on the web: www.holley.com.