Samson revolutionizes motorcycle exhaust with their 3rd generation of the famous Big Guns line. BG3 brings the timeless good looks and superb sound that Samson is best known for to the needs of todays owner. These pipes have a seamless 2 one piece heat shield that prevents discoloration. When compared to double wall pipes, integrated shields weigh much less and sound better. Seamless one piece heat shields are the hot look riders are looking for, and broken tab brackets are a thing of the past. These pipes include integrated smooth flowing baffles that deliver a deep rumble and assure the tuning requirements of todays motors. These stepped pipes go from 1 3/4" to 2 1/4" Muffler and improve the flow of spent exhaust gases. This system is ready to bolt on right out of the box.