HKS 2008-2011 Subaru WRX / STI Drop-In Super Hybrid Filter (hks70017-AF101)
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The HKS developed a unique Super Air Filter that replaces your car's original air filter with high-performance, dry-weave, multi-density polyester mesh enhancing air-flow for increased power. By offering less restriction it allows you to get more oxygen into the engine, offering more potential power, and making your engine keener to rev. This means you get the very best possible power from your vehicle's original airbox. In addition, the new multi-density material allows HKS to use a single layer, in place of the super hybrid filters "sandwich" structure. Progressively denser mesh means that dust particles don't all lodge at the top layer. They instead make their way through the filter stopping at different thicknesses of mesh. It takes a much greater amount of dust to completely block the filter. This means you keep good airflow for much longer. While lifespan will vary according to many factors HKS were showing better airflow for longer than paper filter elements in testing.
- Subaru WRX STi (2008, 2009, 2010, 2011)
- Increased airflow for increased power
- Long-life polyester resistant to clogging
- Effectively protects your engine from dust
In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on final sales, special orders, opened, installed, incomplete, or otherwise used products. In order to initiate a return, an RMA number must be requested and approved via e-mail.
All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).
Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.
For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.