Originally Posted by Ford04Ranger4.0
I just got STI wires and Denso Iridium plugs for mine. Now I'm gonna get a SD coil and a tuner. I'm waiting till my truck gets closer to 70-80k miles. They say the 4.0 SOHC runs best on motorcraft parts.
I have 94k miles on the 03' Ranger. I dont mind spending a little more to get the good products....Who is they? Ford? Now when you say I tuner, do you know anything about about removing the rev limiter so the truck can go over 90 mph?