hey all i jst bought a trx 450r and iam intrested in buying an exhuast ut iam tryi to figure out which one is the best all around exhaust also nerf bars which ones arre godd i would really apperciate the help thanks

 

I would do the FMF MegaBomb header and Q4 muffler.

If you are doing the exhaust (letting more air out), you need to do the airbox as well (letting more air in). EHS Racing airbox lid with Outerwears, and the ProDesign (ProFlow) adapter and foam filter.

And if course a rejet........