HKS Turbo Timer Harness – Fits Toyota SW20, KZN130, JZA70. #4103-RT003. Celica 3SGTE 1990-1993, MR-2 3SGTE, 5SFE 1991-1996, Supra 1991-1992 7MGTE. HKS Turbo Timer harnesses allow for quick and simple installation of HKS Turbo Timers. Also fits Blitz and Apexi Turbo timers.