Anyone know where to order a female flared threaded cap for the EGR tube on the OEM exhaust manifold or headers. I've found the male threaded plug from summit racing for the intake manifold. However I can not find any company that sells a 7/8-15 flared threaded cap to go on the male port of the exhaust manifold/ headers. I can find a 7/8-14 but NOT a 7/8-15 that I need. Anyone who knows where to obtain one please reply.
