KLX 300 S-SM ECU Remapping + Modified Stock Exhaust and Airbox | Big Gains & Better Acceleration

After getting our KLX 300 S-SM ECU Remapping, did you know there are more gains you can unlock on your KLX for free? We modified the stock exhaust and stock airbox on our remapped KLX 300, and achieved additional gains that beat out an open aftermarket pipe, as well as the popular KDX 220 air snorkel. Don't believe us? Check the DYNO! With some power tools and not much time, you can smoke most any KLX 300 out there, and be quiet while doing it.