These 304 Stainless steel flexible exhaust joints serve to absorb excess vibrations and movement caused when custom making an exhaust system. These bellow style flexible pipes give the exhaust system some flexibility. Allowing a small Degree of movement can help when aligning or fastening exhaust flanges and V-Bands, as well as mitigating for linear movement as the exhaust system heats up and expands during use. These joints feature a directional smooth flow solid inner liner to improve exhaust flow.