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Old 03-21-2013, 09:22 AM   #90 (permalink)
boyboydan
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Hi to all!

I went to do some experiment rite aft I read this post, because my muffler drone like hell at 1300-2500rpm!! My pipe is 2-1/2 inch and I had a 2" pipe weld side by side with the main pipe with the length about 1.3 meter. Unfortunately, it still drone at the same rpm.. is there anything else I could do??

Thx for the help!!
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