Hey guys... 
 
I'm thinking of getting this chip that I found on ebay. The problem is that there's two of em, and I dont know which one to choose: 
 
http://cgi.ebay.com/ebaymotors/D-BOOST-PER...9%3A1|72%3A1171 
 
http://cgi.ebay.com/ebaymotors/25BHP-PERFO...9%3A1|72%3A1171 
 
Maybe someone else have bought one of these chips, if so, what did you think of it? 
I hope someone that knows a bit more than me could gimme some answears:) 
 
thanks.