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hmf
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Posted by: tits

im gonna get an hmf exhaust for my 660 it has a dynojet-jet kit and two holes about as big as a loonie drilled in the top of the airbox when i get the pipe what should i run for jetting to give me the most power and with these mods what should i be getting for hp

Posted by: 04EXdude

First thing I would do is get a Pro Flow K&N and ditch the lid all together.
With a full HMF, Pro Flow, and Dynojet kit I was running 165/170DJs, needles on the 3rd clip, and air/fuel screws at 2 3/4L and 3R using stock pilots. It ran like a MOFO for me but not sure how the exact same set up will work for you..............Good Luck