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Bill's pipes-DMC alien exhaust systems

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Has anyone used either of these exhaust systems? I have a modified crf80 with an obnoxious Pro Circuit system on it now. The head pipe is kinda small on the Pro Circuit system. I am looking for quiet performance. I have a BBR pipe on a CRF70 and don't like the sound of it either. I can't find the db level's of either system's anywhere.

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How is the packing? Maybe you could just re-pack the muffler. I rode at a place that required 96db and just about after every ride it would fail because the packing would lose just enough insulation (or whatever) to make it fail. On the BBR pipe you can use the stock honda insert to make it super quiet.

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I found the Pro Circuit pipe to be one of the best pipes for a stock motor (probably due to its small pipe diameter) plus it's amoung the quietest The FMF is the Quietest one I've tried so far and I've tried about 7 or 8 different pipes.

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