HMF/UNI jetting

[Purcell450r]

Alright here is my situation, I have an hmf on my bike now, but I want to get the quiet core. Im also getting a uni filter this weekend. I have the stock filter on now, but my question is, do you think I should rejet after putting the diff. filter and quiet core in? I was thinking that I would be closing up the exhaust some and opening up the air, wouldn't that come close to balancing each other out?


I also have an open airbox bc of the hrc.

[Project300EX]

Switch the stuff and see, that's the only way to know.

[86250rrider]

im not sure about the quiet core... i have open lid,hmf,uni and run 185 main and 52 pilot clip in middle in western pa. runs strong this jetting worked great at hatfield mc coy in wv also

[d3ktrix]

The filter shouldn't affect your jetting enough to require rejetting.
Unless your already running on the lean side.
I switch back for forth from a stock filter to a sparks and it doesn't affect my jetting in any noticeable way.

Not sure about the quite core.

[86250rrider]

Originally posted by d3ktrix
The filter shouldn't affect your jetting enough to require rejetting.
Unless your already running on the lean side.
I switch back for forth from a stock filter to a sparks and it doesn't affect my jetting in any noticeable way.

Not sure about the quite core.


ABSOLUTELY...EVEN THOSE HIGH FLOW K&N FILTERS!! BWWAAAAHHHAAAAA:D

[Jersey450R]

When I had a HMF, i used a 175 main and half the lid.