I removed the 'air filter for life' box from my 2007 Focus (160k miles) and attached it with a 3.5" Specter coupler instead. I then attached the Specter Short Airflow Filter. I ended up experiencing a much smoother engine with better acceleration and gas mileage. The difference is insane
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π Silicone Throttle Body Hose for Subaru WRX 2008-2014 - Mishimoto MMHOSE-SUB-ITBBK (Black)
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