One of the benefits of a Subaru boxer engine is that they respond well to lightweight crank pulleys. Kartboy’s crank pulley is a great option for you BRZ/FR-S owners. Think of it as having a lightweight flywheel, you’re going to reduce the rotational mass and strain on the engine.
The Kartboy aluminum crank pulley is black in finish, and weighs in at 1.04lbs.
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