These flanges fit the Toyota 5VZ exhaust manifold, but are cut for 2" standard size exhaust pipe. If you are going to try to make a custom exhaust, Toyota uses a metric size exhaust tube which is expensive and hard to find. Our flanges are machined from 304 stainless, 3/8" thick. Sold as a pair. Unpainted....but they are made of stainless. Made to order. Approximately two week lead time.