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The COMP Cams Thumpr 299Th hydraulic roller camshaft is an aggressive street/strip grind that creates a hard-hitting race-style idle and broad torque gains. It requires an aftermarket torque converter and lower gear ratio to keep the drivetrain in the powerband, and typically reduces idle vacuum, which can necessitate a vacuum canister, pump or hydroboost for vehicles with power brakes.
COMP Cams Camshaft CBVI 299Th R7 Thumper
