Subaru EJ253 Engine - australiancar.reviews
New 'high ignition' spark plugs were introduced and the sequential ignition coils were replaced with direct coil-on-plug ignition; Cooling was enhanced by increasing coolant flow around the spark plugs; A lighter catalytic converter; and, A single 16-litre muffler was introduced to reduce the mass of the exhaust system by 6 kg.
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