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. These crankshafts go through a multi - step heat treatment, nitriding for top - notch strength. They're then stress - relieved, shot - peened, and magnaflux - tested. The center, crank pin, and counterweights are gun - drilled to cut down on weight. Each Turbo Tuff crankshaft has knife - edged counterweights for perfect balance and minimal rotational mass. Specs: 4340 Billet for high - horsepower and high - boosted engines, multi - step heat treatment, nitrided and stress - relieved, 100% magnafluxed, knife - edged counterweights, and gun - drilled crank pin and counterweights.

Using this Manley Turbo Tuff crankshaft is straightforward. Just install it in your Subaru WRX or STI with EJ20/EJ25 engines from 2002 - 2021 following standard engine installation procedures. When handling, be careful not to scratch or damage the surface as it may affect its performance. For maintenance, regularly check the crankshaft for any signs of wear or damage. Keep it clean and lubricated according to your engine's maintenance schedule. If you notice any unusual noises or vibrations, have it inspected by a professional mechanic right away.