Just ordered a set of hot cams for my 07 WR450F (4023-1IN and 4044-IE ) I spend my time riding with my friend who rides a 05 KTM 525 SX which hauls like a freight train. I know the bikes are in different classes but i'm just trying to let my bike enter on a little more level playing field. All free mods are done spark arrestor is pulled as well as the baffle with the pea shooter in it. The end cap is on the bike. Will my WR be too restricted to see any gain from my hot cams? I would like to keep my stock exhaust to make my bike look stock without any mods. The bike is also plated and used for on road as well will the bike be street able with hot cams in?