Its a 20 cent part from Radio Shack. The may be sold in pack of 10.
Its called the IAT mod. Essentially you trick the computer to think its like 45 degrees outside so it dumps in fuel accordingly. Downside will be crap fuel mileage when temps go up over the summer. When temps drop below the value the of the trick (45 may or may not be the right temp value) you will run lean with potential engine killing detonation.
Real horse power aint cheap. You get what you pay for.
Want it a chip? Spend 300-400 dollars for it.
99 x-cab 4x4 4.0l auto
mods, cranked t-bars, silencer delete, k&n drop in, Rebuilt trans ,Trans Go stage 3 shift kit, 3200stall Fuddle Racing Torque Converter,
VANIR 63mm TB, Roush split rear exit exhuast, E-Fan, JBA Headers
Auto up/down both windows, OHC, EATC (soon to be modded)
03 Crown Victoria Police Interceptor