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Is this a MAC pipe?
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Danny King
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Mac1382 13cc super quiet pipe
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That looks like a Macs pipe, which is not related to Mac.
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Yup, Macs Exhaust super quit pipe.
My experience with one on an OPS 67 in a scale was too much back pressure, creating too much heat.
I cut the big can off and ran a stinger muffler, worked fine after that.
Danny King
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This is the 15cc version. Ran great on a 101 powered sgx on 40%. Would run even better if I dialed it in more. All I did was take off a regular quiet pipe and put this on. It’s running 84 mph in this video. Pretty cool.
View attachment IMG_1730.MOV
View attachment IMG_1730.MOV
ALLAN YUEN
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Look like Macs 7.5cc super quiet muffled pipe
Rudy Formanek
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Danny King is right. It is a MACS Products 13 cc super quiet pipe, it has the same internal structure as a Violet ducted fan pipe. It is NOT a muffled tuned pipe, you cannot cut the can off and get a tuned pipe. Ducted fans usually ran 20 or less percent nitro. I used to work there.
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