So I am in the middle of getting my bike(Wr426) ready to blast for Spring. Doing the Hotcam auto-decomp cam and shims for the 426 with a '07 Wr Carb. Which brings me to my noob question.
I already have the stock Wr header and a YZ exhaust. I am wondering the Pro's & Con's of doing a FMF header and Q4 exhaust and don't really know the benefits other than getting more Hp when I just tractor the trails at my own pace. Is there an benefit other than this or something I should consider while doing my mods?
(Yes, I already did a search and came up with nothing, hence why I am asking)