Well with the GETRAG you are limited as you know but we can make the NV4500 singles and duals work in the GETRAG. Same price as what is listed but when ordering be sure to specify that it is for a GETRAG. It will just have to have the NV4500 flywheel. The 13" upgrade kit is what most go with because it comes with a flywheel and it is at a reduced rate. Dual disc come with flywheels as well.