SOLD FS: K&N Intake for Chevy Silverado '99-'04 Part#57-3021-1 Item is sold. Thank you. I have a slightly used K&N Cold Air Intake Generation II FIPK. Part# 57-3021-1 Product Specifications Product Style: 57 Series FIPK Estimated Horsepower Gain: 9.11 HP @ 5352 RPM Type: Gen II Replacement Filter: RF-1041 CARB EO Number: D-269-28 CARB Exempt: Yes Weight: 11.4 lb (5.2 kg) Product Box Length: 22.25 in (565 mm) Product Box Width: 14.25 in (362 mm) Product Box Height: 12.5 in (318 mm) Check your truck on www.knfilters.com to make sure it will fit. Here is more info: http://www.knfilters.com/search/product.aspx?Prod=57-3021-1 Vehicle Application List: http://www.knfilters.com/search/applications.aspx?Prod=57-3021-1 Looking to get $150 for it, plus shipping.