TCI 391000 Features:

Engineered for high-performance applications up to 750 horsepower, the 6L80E StreetFighter Transmission is designed to deliver the strength, consistency, and reliability demanded by serious street and performance builds. This new transmission incorporates premium components and precision engineering to handle elevated power levels with confidence.

At the core of the 6L80E StreetFighter Transmission are high-performance clutches and steels specifically selected to withstand the stress of higher-horsepower applications. A new billet pump rotor assembly, paired with a precisely machined pump and updated sprag assemblies, provides more holding power - ensuring reliable performance under demanding conditions. Additionally, the transmission features new electronic components, providing improved control and responsiveness.
Every TCI 6L80E StreetFighter Transmission is dyno-tested before leaving the factory to verify pressure and shift characteristics. Each unit ships with its individual dyno test results, providing builders and enthusiasts with assurance that their transmission has been thoroughly validated for both performance and durability.

The TCI 6L80E StreetFighter Transmission offers a premium, turn-key solution for enthusiasts seeking to enhance the strength and capability of their drivetrain without compromising reliability or drivability.
Please note: A vehicle VIN remains in the TEHCM, and will be overwritten by the transmission shop technician with the new vehicle VIN during the reprogramming process. After installation, the TEHCM must be reprogrammed on the vehicle using a J2534 device in order to function correctly.

• 6L80E transmission is designed for applications where the HP & Torque has been increased with Power Adders or Cam change
• 6L80E StreetFighter Transmission handles up to 750 HP for street/strip use. Built with premium components for strength, reliability, and precise shifts, each unit is dyno-tested and includes detailed results for proven performance
• High Performance Clutches and Steels for higher HP applications
• New, billet pump rotor assembly, matched with machined pump for increased and consistent pump pressure as well as new sprag assemblies
• New Electronic Components
• Dyno Tested; Comes with dyno results paperwork
• All pressures and shift characteristics are tested before it leaves the factory.
• Increased Horsepower & Torque Capacity
• Extra clutches

Note: TCI’s new 6L80 Transmission includes a TEHCM that comes with a generic vehicle VIN that MUST be overwritten by the installer with the VIN from your vehicle during the reprogramming process. After installation, the TEHCM MUST be reprogrammed on the vehicle using a J2534 device in order to function correctly.