450R full exhaust question.

[Blown 331]

Looking for opinions on a full exhaust system for my 450R, it has the HRC kit. I had a White Brothers E-series full system on my 2003 400EX and it made an awesome power increase so I would like that again but I can't find it. The only full systems I have seen are Sparks and HMF. I think I'm leaning toward the Sparks but wanted to get some opinions. Will I need to re-jet it again? Any other info is appriciated.

[Blown 331]

OK, I just read another thread and it sounds like I should get a 190 main jet with a change in exhaust and either the HMF or Sparks would be a good choice. Anyone heard anything on the availability of the White Brothers. I think I my try a Sparks and a 190 main jet.

[4fiddyR]

Mark Baldwin got a pipe out for it too.
baldwinmotorsports dot com

[holeshot19]

nice pipe ive got to figure out how to get more air into the air box with the lid on. i talked to duncan today and they sugusted me use a 400ex k-n with a outerwear. im just not a fan of those air filters so im going to cut a hole in the lid so i can stick a pvc pipe down the back side of it and try that