performance chip vs piggy back
 

hello everybody just got some questions about these two things performance chip and piggy back which of these is the best option to get more hp and have anybody here install these things b4 ??

If you're talking about stuff for an xD then I would avoid both like the plague.

+1

"performance chips" and "piggy backs" from ebay (i assume this is where you see these things) are resistor sets that play your computer to make you run lean and make it seem like you are getting "+150hp!!!1!1!!!1one!1" all it does it ruin your stuff. dont waste your time

how about the apexi AFC Neo Fuel Management

If that a standalone unit then you would only need that after the car has had extensive mods done to it.