No it has manual steering.Is your Dart equipped with PS? Makes a big difference as to what you can and cannot fit!
Yea Aussie headers fit but they are 350 bucks each...<gasp>You can check on the Australian Slant 6 headers. Not sure if they will fit but it is worth a look.
Slant 6 exhaust headers suit 225 Mopar 1967+ sedans, pick ups, trucks Slant six | eBay