Quote:
Originally Posted by
samoilis70
Hi all I am about to get mtc cans for my 2004 xtx and i can wait ,I would like to ask a question first.What is k+N stage 1 ? is it the paper filter? also do I have to change the co ? at the moment my engine is standard and I have change the co from 15 to 18
many thanks yanni.
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Stage 1 replaces the original air filter in the air box. DNA filters are popular replacements. Have a look here for a full list of mods...
http://www.xt660.com/showthread.php?t=630