white bros R4

[rancher350rider]

is this a good pipe for a 400ex i just got the slip on for very very cheap and want to know if its any good thanks

[EXevan91]

i love mine but is pritty loud on mine. i dont mind the loundnees tho but neighbers and cops dont like it i love the sound and if u look at them they are basicly hmfs iam nto sure if the r4 was make before the hmfs but some1s a copy cat there.

[PismoLocal]

Ya R4 are sweet when i bought my quad it had a slip on one that was nice since then i moved to a full system.

[rancher350rider]

what jet would i need to use with it ??