Here is a complete exhaust hanger kit for your 57 Chevy with a V-8 and single exhaust. This kit includes all the attaching hardware needed to mount your muffer. Every nut, bolt, bracket and hanger you will need from the exhaust manifold to the tail pipe is in this set. This set is made by Shafer's, known as the #1 in exhaust parts. The set is for a stock 2" pipe.