One of the best ways to improve the performance of your Dodge Cummins is a set of aftermarket injectors. Look to Diesel Distributors USA for the new Performance Supply Co. FireBall Pro series injectors. FireBall nozzles are manufactured using state of the art processes that maintain proper spray angles and patterns, which result in lower egt's, better economy and more power. All injector sets are properly balanced and set out as matched sets and come with a 3-year limited warranty. Visit www.dieseldistributorsusa.com or call 503-970-6712 for more information.