new headers

I have installed TTi's in a 1970 Dart, 360/727 and a 1975 Dart Sport 360/727. Both sets went in with little or no grief, only time a hammer was needed was to tap the slip fit tube in, and that was a rubber mallet. I'd never hesitate to use them again, but they are definitely not cheap. I've never personally used Doug's, so I can't comment on them.