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About these parts
The Bull Boost off-road pump pulley kit fits 1985–1991 C4 Corvettes with the L98 5.7L V8. It replaces the factory smog pump arrangement with a pulley setup for off-road and track use, cleaning up the accessory drive on cars that no longer need the original equipment.
As the name indicates, this is an off-road part. Check your local emissions requirements before fitting it to a street-registered car.
