Manley Turbo Tuff Series Crankshaft 75mm Subaru WRX / STI EJ20 / EJ25 2002-2021

Part #: 190160B. Manley Turbo Tuff Billet 4340 Subaru crankshafts are ideal for building a strong bottom end. They go through a multi - step heat treatment, are nitrided for max strength, stress - relieved, shot - peened, and magnafluxed. The center, crank pin, and counterweights are gun - drilled to cut weight. Knife - edged counterweights ensure proper balance and low rotational mass. Specs: Ideal for high - horsepower/boosted applications, multi - step heat treatment, nitrided and stress - relieved, 100% magnafluxed, knife - edged counterweights, gun - drilled crank pin and counterweights.

Using this Manley Turbo Tuff crankshaft is straightforward. Just install it as you would with any standard crankshaft in your 2002 - 2021 Subaru WRX or STI with EJ20/EJ25 engine. When installing, make sure all connections are secure and properly aligned. As for maintenance, regularly check the crankshaft for any signs of wear or damage. You can clean it gently with a non - abrasive cleaner to keep it in good condition. Avoid over - revving the engine as it can put unnecessary stress on the crankshaft. If you notice any unusual noises or vibrations, stop using the vehicle and have the crankshaft inspected immediately.