housing swap to fit the Z. You can use a Silvia or GTR 6sp. They actually made by Quaife who also wants $10k for them and they are only rated to 900ps max. I have personally seen many of them break. You are much better off with a HKS 6sp. It is cheaper and stronger. If you are serious about spending $10k, I can get HKS to your door for cheaper.