Seller notes

K&N PERFORMANCE AIR INTAKE SYSTEM MANUFACTURER PART # 57-3021-1Specification: Estimated Horsepower Gain: 9.12 HP @ 5352 RPM Replacement Filter: RU-1041 Air Filter Color: Red Air Filter Material: Cotton Gauze CARB EO Number: D-269-28 Product Style: 57 Series FIPK Intake Pipe Color / Finish: Black Intake Pipe Material: High-Density Cross-Linked Polyethylene Street Legal In All US States: Yes TUV Approved (Europe): No Condition: 100% Brand New, Never Used or InstalledFitment:1999-2004 GMC Sierra 15...

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