has anyone used a JET performance modules on their f150's?? i want to get there feedback on it...problems encountered or results that were noticed?? especially for the 4.2V6 AUTO ....1999
thanks
danny

 

i have a jet module on my 4.6 98. very easy to install but almost no gain if you don't use premium gas. very expensive for what you get. i got alot more power for same money using the ram air setup called "air raid". it was well worth the money!

 

I put one on my 98 F-150 XLT SC FS 4.6L Auto and was extremely pleased with it. It was the easiest mod I've done to my truck, less than five minutes. It was most noticeable when you "mashed the gas". I speak in past tense because with the addition of the K&N FIJK, the FlowMaster Duals, and a complete Jacobs Mileage Master kit, I can't credit any one component... Now I'm eyeing shift kits and aftermarket cams. Any suggestions?