For Sale: HKS GT2530 turbo. I ran this on a silvia for 3 months while I was stationed in Japan. I upgraded to a bigger turbo and have not used this one since. It has no shaft play and is in perfect working condition. This turbo has a very fast spool up and none of the turbo lag that the GT2540 is famous for. It is a direct bolt on turbo for any SR20DET. I paid $1800 for this turbo brand new while in japan, I will let it go for $600 OBO.