ISO Shifter Kit (Send-In)- ISO Shifter Kit for Corvette

 This is the correct option to choose if you will be sending in your box to be upgraded. The ISO Shifter Kit is our finest setup for C5, C6 and C7 Corvettes. The kit includes the shifter with your choice of 5% or 20% reduction ratio as well as our Factory Upgraded Box with your choice of torque tube bushings, all stainless hardware required for the installation and our new Delrin ISO Knob.  If you have a Z06 box (Solid Torque Tube Bushings) to send in please select Z06 box from menu. If you have a NON-Z06 box please choose either Poly or Delrin for your torque tube bushings.  We recommend Delrin (firmer) for cars that see track time and Poly (softer) for daily drivers or cars with higher mileage.  After checkout we will expect to receive your box within seven days. We typically have them done and back in the mail, along with the rest of your parts, within two or three days, if you need faster service contact me directly.  Your upgraded box, the shifter you select below and any other pa