R4 #2

[titianheel]

do i need to take the spark arrester out on this slip-on for my 400ex

[UglyMotha™]

you sure do ask some funky questions, why would you need to take your spark arrestor the only time you should remove it is for closed course racing any other scenario you leave it in unless you wanna start a forest fire:huh

[DGR Designs]

nah just leave it in. take the screen out every once an a while and use a torch to burn the crap outta it that usually clumps up on the screen. i take it out too every once ana a while ant take off the endcap too and nail the gas a few times to get rid of some of the carbon in the pipe.