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The plug gaps are controlled with laser precision throughout the manufacturing process and should not be re-gapped unless absolutely necessary (due to the fragility of the center electrode)
11mm oil pumps are standard for most dual AVCS applications
JDM STI MY01-02 (Original Equipment)
By increasing the electromagnetic force the maximum locking ratio can be increased resulting in increased differential performance especially under the most demanding conditions
We recommend that the Break-In oil is used for the first 1500 miles
AVCS Oil Control Valve 10921AA140 Synthetic The plug gaps are controlledThe AVCS intake oil control valve (solenoid) controls oil flow to the camshaft sprocket as part of the variable valve timing (VVT) system. It installs into the cylinder head's front cam bearing cap assembly. A sticking or faulty oil control valve may set a fault code and require replacement. The AVCS (Active Valve Control System) is used by Subaru to vary the camshaft timing in order to improve efficiency and reduce emissions across the rpm range. The
