Reply to "Pantera # 5357 - Rocky's 1973 L model"

You need to use Pat Michaels mufflers to get the 600+ hp out of his headers.
From what he explained to me, they are all engineered together.

I had asked him about the obvious "pinch" in the pipe as it routes through the suspension. He said the dyno showed no loss of power and is necessary to clear the axles and suspension.
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