I can't get the e-series slip on for a while so which slip on silencer is the best-pro circuit,yoshimura,FMF,suprttrapp or anybody else. Also which one is the quietest????please any info will help??

 

Well, yoshimra and pro circuit are racing pipes so they are one loud *****. I'v never seen or heard the supertrrap. I've seen lots of FMF pipes and they are all different. If you want one that is quiet then get a supertrap cause they give you inserts so you can adjust how loud you want it. But if I were you I would wait for the White Bros. E series. That is what I got I'm just waiting for my EX to come in.

 

Is the e-series loud???

 

If loudness isn't a concern, go with the Curtis Sparks Pipe. It is by far the best 400EX pipe i know of. If sounds is, go with the Eseries. They are next in line, in my book.