Is anyone able to tell me the difference from the stock N1EF to a N3CH ? is the N3CH leaner than the N1EF ? If so in what range ? I've been comparing the needles you guys use on the 300 with JD's spreadsheet but the N1EF is not in the database. If anyone knows, I would appreciate your help.
Thank you !
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Vindicator
'11 EC 300R
Last edited by Vindicator; 01-02-2011 at 08:07 AM.
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