K&B 7.5 outboard tunepipe

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09-20-2015, 02:48 AM

Nitro boater

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K&B 7.5 outboard tunepipe

Guys what is a good lenght to start of with a tuned pipe and how do one mesure

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09-22-2015, 06:07 PM

Ron Olson

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With all of the twists and turns in an OB tuned pipe you have to follow the path of the exhaust starting at the glow plug to the widest part of the pipe. Start off at 10-1/2".

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