AWE Tuning AWE S-FLO Intake for B8 S5 4.2L
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The S-FLO Filter is the largest filter that can fit within the factory air-box, and also our bespoke filter of choice for all 3.0T S-FLO packages. The AWE S-FLO Filter is a proprietary, washable, dry media, large cylindrical filter that has been tested to allow up to 34% more airflow than the factory paper filter.