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Ryland · 09-05-2010, 11:14 PM

here is an exhaust calculator, this is ideal size for the given RPM that you put into it, not to big, not to small.
Autolounge.net | Calculators | Exhaust Pipe Sizing

09-05-2010, 11:14 PM	#3 (permalink)
Ryland Master EcoModder Join Date: Jan 2008 Location: Western Wisconsin Posts: 3,903 honda cb125 - '74 Honda CB 125 S1 90 day: 79.71 mpg (US) green wedge - '81 Commuter Vehicles Inc. Commuti-Car Blue VX - '93 Honda Civic VX Thanks: 867 Thanked 434 Times in 354 Posts	here is an exhaust calculator, this is ideal size for the given RPM that you put into it, not to big, not to small. Autolounge.net \| Calculators \| Exhaust Pipe Sizing