[jherka]

not very up to par on rejetting. just curious my bike got rejetted for a new exhaust put on. if i put an open air filter on is it probable im gonna have to rejet my bike a 2nd time?

 

[2500hdon37s]

if its already jetted for the exhaust you probably wont have to, but there is always the possibility you may have to increase the jet size a step up. Wont know until you ride it.

But if you can turn a screw driver then you can rejet the bike. It's much easier than it sounds.

 

[Harryc]

Agree with 2500hdon37s. The stage 1 jet kits I've seen and installed come with (3) different sized jets for use depending on if it's a stock exhaust, an open exhaust with baffles, and an open exhaust without baffles. You can use a stock air filter replacement like K&N with a stage 1 kit as well. Then there's stage 2 kits for the above but with modified air boxes, stage 3 for individual filters, and stage 7 for racing applications.