This last weekend I put the Brute into its first Mud drag with Johns standard bore kit, clutches, Muzzy's and Msd. All I can say is WOW! I put a beating on two po po 850 ' s, one XMR 1000 and another Brute and about 4 other atvs. I ended up winner 1st place and fastest pass. All I can say if you been thinking about pulling the trigger on one of his kits, DO IT!! Top notch grade A performance. Thanks John.