Ok, so i was scanning through ebay for the oh so many mods for our avalons, and i came across this:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=120359496944 I know these are one of those too good to be true things, but i scanned through the feedbacks and they seemed to be working for the toyotas. I am planning to buy it just for fun to try it out since it is only like $13. But before i did anything, i wanted to get everyone elses thoughts or experiences on these. I've also heard these can screw up the engines, but what do i know?

Thanks for any help guys!