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77 Posts
My '06 TW had been modified with a K&N air filter and I want to make sure it was done right and is safe for the engine. The previous owner cut quite a bit out of the factory airbox and then mounted the K&N cone on the rubber hose that connects the airbox to the carb. I would like to know if this is a recommended "upgrade" and if I there are any benefits or drawbacks from this change.