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kellyfrank

New Muffler

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I have a 1999 Dutch star.

4" end out nipple rotten need a new muffler. Getting confused-- should I go with a high flow or just a standard replacement, and where will I find one to fit the exact dimensions needed to back in the brackets welded to the frame?

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I would start by getting the part number for the exact replacement from your chassis maker. With make and model, you can get the exact dimensions.

You might also go by a shop that works on OTR truck exhausts. They could quickly tell you what you need.

Brett

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They don't even carry my size. I am undecided between an AREO 4040 / xl or Donaldson muffler and it is going to be considerably smaller and basically flow thru.

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I am using the Aero short without the resonator for the last 8 years. A little louder than the stock muffler but since its in the back I don't hear it. Slight increase in fuel milage but it was combined with some other changes.

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