best crf450x exhaust

hi all,


just wonder what is the best exhaust for the 450x for power gain?

Define 'best'

Define 'power gain'

State of current tuning of your bike

ok good points lets try again


setting my 07 450x up for a bit of dual sport fun.


what set ups have people had success with e.g exhausts , jetting , gearing  dos and donts?

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