The HKS turbo timer harness is a vehicle-specific wiring harness for connecting an HKS turbo timer on 1997-1998 Toyota Supra twin turbo models.
| Type | Turbo timer wiring harness |
| Fitment | Toyota Supra twin turbo 1997-1998 |
| Part number | 4103-RT007 |
| Part Number | 4103-RT007 |
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