motorworks g2 full exhaust

[jlrenken]

i have a 08 450er and was looking to get the new motorworks g2 full exhaust and was wondering if I would need to rejet. Motoworks says I should run the stock getting but that really doesnt make sence to me with it being an after market exhaust. I always thougth you had to rejet when puting on an exhaust. If I do need to rejust what should I be jetting it to. I live in Iowa. what do u guys think.
thanks

[KBooth]

Always re jet if needed. You may just end end putting in a larger pilot jet and not the main. But I will 100 percent positive you will need a bigger pilot.

[Ex_Rider43]

I dont understand how they can make more power , I saw one last week and the I can barely pass my thumb through the endcap . They look very good tho.

[jlrenken]

they have diff inserts small one for the spark arrest, and a larger one for the special insert to bring the db down and no insert to be full out power. is what i was told