If you were building a Mopar sleeper....

LXguy said

Tailpipes, X-pipe and Dynomax Super Turbos will go a long long way towards making something quiet.

My car had that setup with longtubes and no tailpipes and I was constantly getting ragged for how quiet it was.

Everyone expects an old car to have Flowmasters on it, and mine was quieter than that.

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Flowmaster's are done to death. It's like the most common thing ever on a Mustang. IMO, they don't have that muscle car sound. Not like a Cherry Bomb anyways..

I am thinking about running Magnum manifolds because they are said to flow every bit as good as 340 manifolds. They are much cheaper though..