The Dedenbear Interface Unit Model IF-1 is a performance part designed for auto enthusiasts looking to enhance their vehicle's performance. Manufactured by Dedenbear, this interface unit is known for its quality and reliability. With a focus on improving efficiency and power output, the IF-1 is a popular choice for those looking to upgrade their vehicle's performance capabilities.Last used in a race car in 2019. Retired from racing, have no use for it. Selling as is untested with no returns