HPI has released a Delrin Outdrive Set for the 2004 ROAR National Champion Pro 4 touring car! Made from aerospace grade Delrin plastic, these outdrives give racers reduced friction for higher performance and increased efficiency. And, there is a significant weight savings over the stock steel outdrives, especially important because they reduce the rotational mass of the drivetrain for improved acceleration and faster reaction to throttle and brake input. These are direct replacements for the stock parts, manufactured to the exact factory dimensions for a perfect fit.
