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Old 06-24-2008, 03:13 PM
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MFLOOD3800
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Default RE: TT Pro40 Muffler?

I use 4-40 all thread and double nut it.
I have also used the OS muffler bolt as it is much thicker and then I use the good ole thread lock and do NOT over tighten. I have 6 or more races with 3 heats each at 10 laps a heat and still got it.