The product is a set of two 1 1/2" tubing, inlets (inside) 1 5/8" outside, 1 3/4" outlet, outside, steel .065, 6 1/2" long, designed for auto performance and racing parts. Manufactured by 7th Phase Inc in the United States, these parts are specifically crafted for enhancing exhaust systems and improving overall vehicle performance. With a focus on quality and performance.