66 dart headers

I assume your asking about headers for a V8? If that's the case then yes, there are a few makes. Spitfire's don't know who makes them. Headman makes a set of full length fenderwell headers. Hooker makes a set of full length headers, that are part chassis and part fenderwell. There is cutting with the Hooker's and Headman's. It all depends on what you want.