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- Part #:HPR7421
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Spectre Air Filter Part #HPR7421 Customer Reviews
3 Customer Reviews
Reviewed by GILBERT B (COOS BAY, OR) Reviewed for a 2003 Buick Regal — Dec 09, 2013 9:35 PM
Having been a professional driver in my younger days I am attuned to engine sounds and after installing the Spectre air filter I definitely could tell the engine was running free'er with the engine getting more air. This logically should relate to better gas mileage.