it isnt really bike dependant. if you are using a aftermarket slipon, fullsystem, end can, whatever.....and or a aftermarker air filter. Your obviously increasing air flow....and keeping the same amount of fuel per injection. Your going to run lean in 99% of cases. Most not noticable enough for someone to be able to physically feel it. in other it will be a hell of a lot more noticable. Its completely up to the owner to have the fuel/air ratio corrected....its IMO not something that must be done. im running a leo vince pipe, wrapped headers and mid pipe, and a bmc race filter....and im running a generic map off of dynojets site. I played around with a few of them and found the one that felt the best. ie: throttle response, power, heat production (my bike runs SUPER hot now) etc etc.
obviously though, like jimmy's bike shows us.....there is a lot of power to be found with the correct mix.
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