New here, have a 2000 Durango 4x4 w/5.9L, K&N FIPK, and power aide throtle body. I have seen on ebay these performance mods for under $10. Do they work?

 

Save your money! ! Those things are pure junk, just a capacitor/resistor with a couple of wires coming out of it (several unhappy buyers on Ebay took the things apart). Read the REAL feedback and not the "feedback" they put in their ads. They'd probably be banned from Ebay if more people weren't too embaressed to admit thay had been "scammed"!

 

I second that. This is a 10 cent resistor you can get at Radio Shack.