I just mounted an entirely new dual 2.5" exhaustsystem on my '73 318ci Dart.
Dougs Headers, Summit X-pipe, Borla Pro-XS mufflers and Flowmaster tailpipes to the rear. All mandrell bends.
The exhaust is quite a bit quieter than before when I had 2.25" dual exhaust, 318 castiron manifolds, 2 different sized turbo mufflers.
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