This Speed Engineering plug kit disables the Computer Aided Gear Selection (CAGS) system that controls the skip-shift feature on the 1989–1996 Corvette C4 ZF 6-speed manual transmission. With CAGS bypassed, the 1st to 4th shift lockout is eliminated and the transmission can be shifted into any gear at any time. The kit plugs into the factory harness.
⚠️ Important Notes:
- Does not eliminate the 1st to 4th gear shift light
- Does eliminate the check engine light that results from unplugging the CAGS sensor
Features:
- Skip Shift Eliminator: Removes the 1st to 4th shifter lockout
- Made for the ZF 6-Speed Transmission
- Factory Harness Plug-In
- Prevents CAGS Check Engine Light: When the CAGS sensor is unplugged
Vehicle Applications:
Chevrolet Corvette C4
- 1989 Chevrolet Corvette C4 — ZF 6-Speed
- 1990 Chevrolet Corvette C4 — ZF 6-Speed
- 1991 Chevrolet Corvette C4 — ZF 6-Speed
- 1992 Chevrolet Corvette C4 — ZF 6-Speed
- 1993 Chevrolet Corvette C4 — ZF 6-Speed
- 1994 Chevrolet Corvette C4 — ZF 6-Speed
- 1995 Chevrolet Corvette C4 — ZF 6-Speed
- 1996 Chevrolet Corvette C4 — ZF 6-Speed
FAQ
What does this CAGS bypass kit do?
It disables the Computer Aided Gear Selection skip-shift feature, removing the 1st to 4th shift lockout so the transmission can be shifted into any gear at any time.
Which vehicles does it fit?
It fits 1989–1996 Chevrolet Corvette C4 models with the ZF 6-speed manual transmission.
Will the skip-shift light on the dash still come on?
Yes. The kit does not eliminate the 1st to 4th gear shift light.
Will unplugging the CAGS sensor set a check engine light?
No. The kit eliminates the check engine light that would otherwise result from unplugging the CAGS sensor.
Is this part street legal?
No. Speed Engineering sells this CAGS bypass kit as a race-only product intended for competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).

