It just occured to me that I have a Magnaflow exaust systems that I bought for my 65 a couple years ago sitting in my friends garage. Would I be able to use it on my 67 considering the floor pans are realitively the same or are their any inherient differences that wouldn't allow me to do that?

 

Should work fine as long as the engines and exhaust manifolds are the same.

 

If you know what Magnaflow exhaust kit you bought, you should be able to go to the Magnaflow website and see if the same kit is also listed for 67s.