What is a good pipe for a 2002 400ex? These are the three that im looking
at...

http://cgi.ebay.com/ebaymotors/ws/eB...tem=4508528080

http://cgi.ebay.com/ebaymotors/ws/eB...509016186&rd=1

http://cgi.ebay.com/ebaymotors/ws/eB...509523173&rd=1

 

white brothers e-series they got best sound best performance and best all around pipe so u should get white bros

 

What about the R4?

 

Our 2 400ex's both have white bros. E series pipes. They sound good and make good power. They are however junk. The quality is horrible, the two pipes have been welded 3 times. I just took one off and it needs welded again. We ride in the woods so they do get abused but, the FMF pipes (3) I have ran on other quads have never broke. I am unhappy saying this because it is good power for money, but I would not give you my E- series.

 

an r4 is a verry good pipe, a bit loud though... it gave my bike huuge gains and the powerband is way better than stock.