Best 400ex mods
#1
Best 400ex mods
I have the basics. Sparks full exhaust, K&N filter with prefilter, air box lid ON (I ride a lot of water, Doesnt bother me with the little less power) Jets, Swing arm skid, 450r front shocks, aftermarket ECU, and new plastics. After all these things, without tearing apart the motor, is the best mods for this bike. I am talking full out.
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