Manley Turbo Tuff Series Crankshaft 83mm Subaru WRX / STI EJ20 / EJ25 2002-2021

Part #: 190060B. Manley Turbo Tuff Billet 4340 Subaru crankshafts are ideal for building a strong bottom end. These crankshafts go through a multi - step heat treatment process and are nitrided to gain maximum strength. After that, they are stress - relieved, shot - peened, and magnafluxed to ensure quality. The center, crank pin, and counterweights are gun - drilled to reduce weight. Each Turbo Tuff crankshaft has knife - edged counterweights for perfect balance and low rotational mass. Specs: Suitable for high - horsepower and high - boosted applications; Multi - step heat treatment; Nitrided, stress - relieved, and shot - peened; 100% magnafluxed; Knife - edged counterweights; Gun - drilled crank pin and counterweights.

Using this Manley Turbo Tuff crankshaft is straightforward. First, make sure your Subaru WRX or STI engine is properly prepped before installation. When installing, follow the standard engine assembly procedures carefully. Remember to use the right tools to avoid any damage. As for maintenance, it's a good idea to check the crankshaft regularly for signs of wear or damage. If you notice any unusual noises or vibrations from your engine, it might be a sign to inspect the crankshaft. Keep the engine well - lubricated to ensure smooth operation of the crankshaft. Also, avoid over - revving the engine, as this can put unnecessary stress on the crankshaft and reduce its lifespan.