Hughes Performance Extreme-Duty Transmissions

Hughes Performance extreme-duty 4L80E automatic transmissions (such as model 25-1BX) are designed for high performance GM rear-wheel-drive applications. Rated for up to 1,500 hp, they feature upgraded internal components, including a billet input shaft, a 36-element sprag, and a deep aluminum pan, making them ideal for high-torque street/strip use.

Key features and specifications (model 25-1BX):

* Transmission type: GM 4L80E (4-speed automatic)
* Horsepower rating: Up to 1,500 hp
* Valve body: Automatic/manual with forward shift pattern
* Core upgrades: Billet input shaft, billet forward clutch hub, PTFE sealing rings, and heavy-duty forward clutch plates
* Case material/color: Aluminum / black
* Lockup compatible: Yes
* Generally fits Chevrolet/GM RWD vehicles, often used for high-performance GM trucks (C/K series) and street/strip cars
* Core components included:
-- Newer, robust Sprague (36-element)
-- High-performance red friction plates
-- Deep aluminum oil pan (natural finish)
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