exaust q.

  • Thread starter Thread starter Anonymous
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A

Anonymous

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would an exaust leak on my 66 mustang cause a slightly rough idle?
it's not a terrible idle, its just enough to get on your nerves.....it's leaking at the doughnut gasket where the studs are stripped a bit.....
oh, not to mention, i bought a v8 muffler for my mustang off of ebay, would that improve any flow over the current i6 muffler i have?
 
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