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Our read

GarageScout Take

This 1991 GMC Syclone has had significant mechanical updates including a recent 4L80E transmission installation and a Precision turbocharger with supporting mods.

Strengths

  • Known production number of 2,995 units for verification
  • Recent 4L80E automatic transmission swap with MSD controller
  • Equipped with a Precision turbocharger and upgraded exhaust components

Watch For

  • Refurbished after an accident in the 1990s
  • Catalytic converter has been deleted, affecting emissions
  • Modified drivetrain and exhaust diverge from stock specification