Im searching through ebay and i find a lot of these timing advance resistors. They range from 2.00-30.00. What is the deal about these, some claim to be cheap substitutes for the 200-500 ecu's. Do these even work, and if so which one is a good product. Im thinking about buying one, but i don't want to get ripped off. Im just wondering if anyone knows a thing or two about these products that are sold off of ebay.

Here are a few examples:

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2465938050

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2465770837

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2465725438

http://cgi.ebay.com/ebaymotors/ws/eB...tem=2465712510

 

scam.....no no no and no