Stage I Power Kit. Includes the above pulley and hardware plus ECU modifications. Ignition timing and fuel circuits are re-mapped to handle the increased supercharger boost. These modifications work hand-in-hand to provide a reliable and cost-effective performance boost. Requires shipment of your ECU. As required by law, top speed and RPM limiters are not removed. ECU programming turnaround time is 48 hours from the date received. This kit yields a boost of about 45 horsepower and 40 foot-pounds of torque.