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Discussion Starter #1
I have a 1971 Lincoln Mark III. My exhaust is, I believe, original and still in decent condition. I would like to pop out the current mufflers though to give it a little more rumble like I had in my 74 Mark IV. Does anyone know what size pipe goes in and exits the muffler? I'm assuming its either 2.25" or 2.5".
 
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