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View Full Version : the best rev box for a 03 400ex helpp please



400exrider101
12-19-2005, 04:58 PM
white brothers rev box or procom rev box


Procom Performance CDI for all 1999-2004 400EX

Increase 3 Horsepower and 1200 extra RPM

In stock and ready to ship.
5 horsepower gain and increased top speed.

Features

Improved Timing Curves
Higher Rev Limit
Removed Reverse Rev Limit
Overrides for full performance at all times
Increased Spark Energy
Improved Throttle Response
Easier Starting
Plug-In Module Replacement (Easy Mounting)


whitch one is the best



Brand new in the box, White Bros Rev Kit,Fits all Honda Trx 400 EX 99-05.We accept Visa,Mastercard,Discover,American Express,over the phone at 801-765-0004 or now you can pay at our website --> MotoXoutlet.com

Easy install no body panels have to be removed,

Increses RPM 1200 , and has an improved ignition advance,
therefore intended and most effective on modified motors which typically rev past the original OEM CDI box limits.

h400exrydr
12-19-2005, 05:41 PM
i got the Pro com and it is alot better than the WB for the cold. When i had a white bros i would try and start in like 40 degrees and it wouldnt start, now it is right around 0 and with the procom it starts

400exrider101
12-20-2005, 01:43 PM
ight thanks alot