Fitment for Chrysler Aspen 2007-2008 5.7L Dodge Durango 2004-2009 5.7L Dodge Ram 1500 Pickup 2004-2008 5.7L Dodge Ram 2500 Pickup 2004-2008 5.7L Dodge Ram 3500 Pickup 2004-2008 5.7L Product Description 1.Direct installation. Any further modifications are not needed,it is more conveniently and easily. 2.Stainless steel breather with o-ring to prevent loosening with vibration. 3.The combustion of each fuel injectors reaches the standard which is more economical. Product Advantage 1.High performance .