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Mishimoto Baffled Oil Catch Can - 08-14 STI

Mishimoto’s oil catch can system has been designed and engineered to work on your 08+ STI to eliminate harmful blow by vapors from re-entering your engine. Harmful blow by gases can occur during normal, and spirited driving conditions. Blow-by can increase in these engines as more boost and horsepower are increased. In more serious cases, blow-by can work its way into your intake system, reducing the octane rating of your fuel and potentially causing detonation.

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