If the WB rev kit is an XR250 box, and costs $30 more than an XR250 box from your dealer, why would I buy from WB?

 

what brand is the xr250. is it factory?

 

WHAT ABOUT THE XR400 BOX IS IT ANY DIFFERENT BETTER WORSE OR FIT ON THE EX? OR DOES ANYBODY KNOW?

 

T.C. Racing has a truly unlimited rev CDI box for
the 400ex.This box will turn your modified or stock 400 on!!!

IT's expensive but well worth the money for the
performance.

 

whats their website and whats makes there cdi box better then the xr250? and one more thing how much is it

 

The WB kit only gives you an extra 1100 rpm, the
T.C. box is unlimited!!! It will let your motor rev all the way out, just use a little common sense and don't over rev. That gives you the
advantage of more attainable power and the ability
to rev on out on track where there's just not quite enough room to shift up in a given stretch.
The box sells for about $140 , so I would recommend it only for serious racers ,duners or
motocrossers with modified motors although it really helps stockers too.

 

cool awesoom but does anyone have a website for tc racing?

 

Oh I forgot, the number is (814) 723 3514.
P.S. check out Dirtwheels once in a while you will see several T.C. powered 4 strokes running in the pro gnc class this year.

 

I HOPE THIS MAKES IT TO THE TOP TO ANSWER YOUR
QUSTIONS 400EXALLTHEWAY. THIS TOPIC IS FROM A
COUPLE WEEKS AGO!
99-426-EX = POWER