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Airaid 800-109 SynthaFlow Direct Fit Air Filter
Airaid 800-109 SynthaFlow Direct Fit  Air Filter

Airaid 800-109 SynthaFlow Direct Fit Air Filter

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Airaid 800-109 SynthaFlow Direct Fit  Air Filter
Airaid 800-109 SynthaFlow Direct Fit Air Filter
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Part # 178800109
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Important Messages:

  • This product is discontinued.
  • This item ships directly from the manufacturer. It may take an additional business days for AirAid to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
  • This item 178800109 is made to order. It will be shipped from our warehouse when it is produced.



This AIRAID Direct-Fit Replacement Filter is a drop-in replacement for your vehicle’s stock paper air filter that is designed to improve horsepower and acceleration. The air filter is constructed with multiple layers of filter media and provides significant improvements in air flow and filtration compared to typical replacement filters with the added benefit of being washable and reusable. Why throw money away on a paper filter each time the old one gets dirty when you can upgrade to a serviceable AIRAID Direct-Fit Replacement Filter for often less than the cost of two stock replacements? Installation takes only minutes and is as simple as replacing your stock filter.


2004-2006 Buick Rainier 4.2L-5.3L
2002-2009 GMC Envoy 4.2L-5.3L
2002-2009 Chevy TrailBlazer 4.2L-6.0L
2002-2004 Oldsmobile Bravada 4.2L
2005-2008 Saab 9-7x 4.2L
2003-2005 Isuzu Ascender 4.2L
2006-2008 GMC Envoy Denali 5.3L
Some parts are not legal for use in California or other states with similar laws/regulations

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