anyone seen this:
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2428427120

 

Dunno man... I'll let someone else try this first...

 

this was posted before i say it is BS.

since they offered the same product for my motorcycle.

it's crap!

 

I'd take it with a grain of salt

 

Probably just a resistor inside that box. When the lead for the MAF is hooked to it, the resistor adjusts the voltage, and hence the reading. This is certainly the worst way to adjust a fuel curve. There are many variations of this product that use the example above. I would stay away form this. Any piggy back that does not have an actual CPU or integrated circuit is a bunch of bull plop.