Sup yall i just wanted to know what are some mods that will make a 400 ex alot more powerful and faster.... i dont want to spend over 2,500 $ i will spend that much or higher thanks,,,,,,,

 

Try the search.

 

That depends on the type of riding that you do.

If you just want speed for the dunes then you can get a pipe, cam, bigboar kit, and a high compretion piston, But if you MX then you you want to spend the money on the suspention first. I know some people won't agree but just ask the Pros MX'ers and they'll tell you that a better suspention will get you farther.

In march 2001 DirtWheels had a Pipe shoot out for the 400EX and in the Feb 2002 issue of ATVaction they did a "tips and tricks" article for the 400EX. Both very informative.

Good Luck.

 

I put on a Paul Turner Fat Boy 4 complete pipe and silencer. I put on a K & N Filter and a split fire spark plug. I cannot believe the difference in Power and Torque. I can lift a Wheelie in the first 3 gears. My buddy has a 2002 Raptor he just bought and with the new pipe we are pretty close to top speed. I smoke him on the corners though. I'm thinking about the Edelbrock Carb and possibly the Paul Turner 440EX National Kit. I need to save $ though. But for around $700 you can have a rippin machine with the Complete Pipe, K & N Filter, Spark Plug and new Jetting. Good Luck.
-You cannot go wrong with a Honda!!