H or X CROSSOVER?

70SwingerGuy said

Looks like quite a few people run the TTI full exhaust kits, how is the fit on these?

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As I mentioned above, I had a 3 inch TTi system, including their step headers and Dynomax Super Turbo mufflers on my 1970 Dart 360/727. It was a tight fit, no question about that, but it is a well designed system, and if you follow the instructions carefully, the result is well worth the effort.
I had the headers on for a couple years before I upgraded the rest of it, but I did the installation on jack stands on a Saturday afternoon. The only thing I found was the right tailpipe needed to be adjusted slightly to prevent it from touching the frame rail over the axle.