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| Originally Posted by loony888 and this relates to what exactly? when my 888 makes 500hp and i have to figure out how to route a 4" pipe through my swingarm i might find something useful here, till then.........nah!
besides, there's no real "quandry" if you have the cash to make big horsepower, chances are you have the cash for a 50mm system. if you're doing the open airbox, chip and k&n bit a 45mm system is enough. |
This is mainly due to the random nature of an exhaust system -- things like bends or kinks in the piping, temperature fluctuations, differences in muffler design, and the lot, make selecting a pipe diameter little more than a guessing game.