Brp offers a renewal plan for your Turbo controllers. With prior email/phone confirmation, you can send in your useable Turbo controller and have it turned into a Stage II adjustable controller in any of the three resistance ranges. You will be given a $23 credit towards the purchase price. It is assumed that your useable controller will be in a good working condition when it is sent. Fuse/holder, new resistor, and electrical components will be furnished. Alligator clips, wiper components, internal connectors, etc. will not be furnished.