D&D Exhaust manufactures aftermarket exhaust systems for Harley Davidson Sportster motorcycles. Our exhausts are compatible with Harley Sportster bikes between 2004 and 2019. All D&D exhaust systems are equipped with heat shields, exhaust gaskets, bot kits, and baffles. Each D&D Exhaust Sportster system is designed and Dyno tested in our facilities. Testing is performed with Harley Tuners. Performance increases are about 8 to 10 percent with the proper tune. Looking for more information before you decide to purchase? Give us a call at (817) 834-8961, our friendly customer service representatives can answer any question that you might have.