It has come to our attention that counterfeit S300s have been sold as new and used in the US, Canada, Europe and Australia.

Please reference this page: http://www.hondata.com/s300_counterfeit.html and this image http://www.hondata.com/images/S300_g...ounterfeit.jpg to make sure you are purchasing a genuine product.

 

This should be a sticky.

 

wow. just bought a used one and it all checks out as real deal except the heat sink isnt 7 row its 11x5 with a gap and another 11x5

 

same. you're fine

 

i have heard recently that some honda s300 (maybe other models too) doesnt hold the original maps after a few cycles of driving. the map changes a little somewhere. after a re-calibration it runs ok again.
not sure how true this is but i would like to just put it out there for some clearifcation.

 

There are no such issues with authentic hondata s300 systems.