Jetting Recomendations for FMF Exhaust

I am, by far, no jetting expert. I own a 06 yz and I plan on getting a powerbomb header and a speed muffler. (I would get the 4.1 but I ride around my neighbors. I think the speed is almost the same as the powercore) When I put this system on, what kind of changes should I expect to my jetting. I have a 48 pilot in it now and it works great. But would my main or needle change? Thanks everyone.

Most of the time you don't have to change the jetting. Both are free flowing exhausts.

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