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 14 days. Your upgraded box, the shifter you select below and any other parts you order today will be shipped within five days of your box being received. You will receive an email with our shipping address after you have completed checkout, this is the address to send your parts in to.
Please read our FAQ page before you complete checkout for all the important details and please shoot us an email if we have not explained anything properly.
Do not send your stock shifter in with the box, I will throw it away.
ISO Shifter Kit for C5 C6 C7 Corvette TMODCUSTOMS