First off... You need to understand where to post your threads, this subsection is for those seeking help with the forum, navigation assistance, reporting issues etc etc..
I see you've already started a couple of threads in relevant subsections, you could continue to ask questions on those rather than starting new threads each time. Users will see your new posts as it will be out to the top of the 'active topics' section.
As for an exhaust, total waste of money, it will make very little noticeable difference other than being ridiculously loud and annoying your riding buddies.
98 300 Fourtrax 4x4
Custom built mud bike - Now sold.
2004 Foreman 450S
Fully overhauled (nut & bolt rebuild), 2” lift kit, 28” mega mayhems, ITP delta rims, ES floorboards, 22” LED lightbar, Pyle Bluetooth sound system.