ACL Main Bearing Race Series Standard Size Sets Mitsubishi EVO X | 5M1237H-STD Vehicle Model_WRX STI Provides access to modern high-flow

Provides access to modern high-flow injectors

3-inch V-Band Connection

with STI logo in the center

Part #: MF11-UR-RD/WH

Earlier STI pistons weigh in at 414 grams while the Type RA pistons weigh 424 grams

ACL Main Bearing Race Series Standard Size Sets Mitsubishi EVO X | 5M1237H-STD Vehicle Model_WRX STI Provides access to modern high-flowACL's main bearings are made of a softer metal so that you don't wear out your crank or engine block. Additionally, a thin layer of oil lubricates the connection between the bearings and the crank allowing the crank to "float" and reduce wear. Proper support via main bearings is crucial to prevent oscillations and wear that can damage the crankshaft and other components as the motor moves further out of balance. Bearings with extra oil clearance will