King SI-Series Main Bearings (Set of 5) Subaru WRX 2002-2014 / STI 2004-2021 EJ20/EJ22/EJ25 (Including Turbo) Vehicle Model_Q60 adjustable Rear Lower Control Arm

adjustable Rear Lower Control Arm provides +/- 2

All lines are pre-assembled with double-swivel sport crimp style hose ends and ready for installation

Single Wall Burnt Steel Tip

Adds 10 whp WITHOUT re-tuning the ECU

Fit & Finish:

King SI-Series Main Bearings (Set of 5) Subaru WRX 2002-2014 / STI 2004-2021 EJ20/EJ22/EJ25 (Including Turbo) Vehicle Model_Q60 adjustable Rear Lower Control ArmPart #: MB5382SI King SI Series main bearings are replacement bearings designed for performance engines with a factory crankshaft. The bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. King SI Series main bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.