2 1/2in Street Lites Most economically priced pipes. These pipes have all the same features as Street Pro's, except the DO NOT come with a billet end cap. Offers performance and high luster show quality chrome to your bike. Patented Doublewall design means these pipes won't discolor. Most feature 1-3/4" inner pipe with an intergrated 2-1/2" outer pipe. Long and sleek, running to the end of the rear tire. Comes with a standard spiral louvered core. 1-piece seamless construction. Fat 2-1/2" outer pipe gives your bike a mean look. Keeps pipes from blueing!