im thinking of adding some 4.10's with LS. any positive or negative things to say about this? also im in need of some headers for my 4.6. does anyone know if any are out for a 2004 4.6? ill be heading to the dyno very soon to compare HP and Tq. #'s with an intake and exhaust; and then with the 4.10's, Efans, pulley, and headers. would anyone happen to know how i would go about fixing my speedo and eliminating the 100mph speed limiter without getting a chip or programmer?

 

How come you didn't buy the 5.4? Ooops

 

didnt have the means. i wanted to STX also not the FX4 for the monotone paint.