K&N offers a wide selection of metal weld-on and bolt-on adapters for use on air intake systems. A variety of plastic and composite adapters are also available. Product Features:Chrome finishIncludes vacuum tube adapters and fittingsIncludes 3 inch diameter intake tubesCo-polymer ABS resin constructionUniversal air intake systemChrome finish/lookGreat when building a custom air intake systemIncludes collar clamps for a continued chrome look