I stumbled across a video I took when my bike was a KLX250 and thought I would do another video to show the difference in the exhaust note. The bikes running a KLX300 complete exhaust uncorked.



Can you tell which one is the 351?

 

The bottom is the 351. Wish you could have put a dB meter before and after to accompany the qualitative exhaust tone.

 

Correct the bottom video is the 351. Good idea about the db meter, wish I had thought of that. The 351 is considerably louder when you crack the throttle.