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Twin Power™ compliance fittings absorb vibration and maintain secure manifold connections on 1984-1989 Evolution Big Twin engines, replacing OEM H-D 27008-83A to prevent leaks and cracking under torque loads.
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Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).
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