If you fitted a K&n or dna stage 1 replacment the fuel mixture will lean out slightly but not to much to cause any issuses.

On my last xtx i ran snorkle out k&n stage 1 and dna stage 2 with aftermarket pipes and no fueling correction and never had any problems and i ran 15.000 miles on that setup.

This time i have purchesed the kev fuel mod worth the price compared to a powercomander.

Sent from my GT-N7100 using Tapatalk 2

__________________
2 wheels is freedom , 1 wheel is heaven
Theory Passed 3/04/08 das test passed 12/06/08
piaggio nrg 50cc-sold / yamaha xt125r -stolen / Yamaha XT660X