Looking for a little more performance 2004 4x4 5.4L FX4

Thinking about:

Long Tube Headers - Dynatech with High Flow Cats.
Cold Air Intake - K&N, S&B or AirRaid Systems
Hand held tuner - Have used SCT before on other cars. What is recommended on F-150's

Will this work result in any noticeable performance increase or am I wasting My time until I boost it

 

I'm not sure either as I haven't tried any of them yet, but if you try the cold air intake, let me know how it works. Id like the looks of it, and if it actually does anything performance wise, I'll probably try it too.

 

A SCT tune would net you about 22-25 rwhp and 20-24 torque for a stock 04 5.4.

 

I did CAI and the EDGE CTS tuner. these really "woke up" my truck. I have since done new plugs and ACCEL super coil packs. My next MOD is going to be regearing since I am running 35's. It retro-spect I think I should have done the regearing in the beginning

 

If you are serious about adding boost steer clear of the CAI. You will just end up trying to sell it. Long tube Dynatechs are awesome. I love mine. And again if you plan to boost go ahead and get the headers along with true dual 2.5" exhaust. Also get an SCT X3, the Livewire, or the new X4 when it comes out. Either one will have canned tunes you can run until you boost it. And then any of these can be used to load custom tunes for your boosted truck. I wouldn't waste money on a custom tune until you supercharge it.

Don't get me wrong, custom tunes are great on basically stock trucks. But if you are going to boost it there's no point in spending money on tunes for your stock application.
Unless you have a coil going bad don't bother with the stock ones. They offer enough power to support 1000hp. The aftermarket coils usually offer 10% less power then the Motorcrafts.
Also I know you didn't mention it but don't waste any money on under drive pulleys if you plan to boost.

Regearing as Bigdawg mentioned is a worthwhile mod whether you boost or not. Really wakes the truck up.

 

How do I know what My truck has in now for gearing? Or should I say suppose to have in it. 2004 4x4 5.4 FX4. I have 33" tires so would the 4.10's be a good choice for everyday use? I want some get up and go! Also they list 8.8 and 9.5 sizes? How do you measure or which size is correct for the 04 4x4? Any preference on brands ... Motive, Richmond? Thanks

 

If it has the tow package then it should have a 3.73 rear if I remember correctly what my build sheet states for my '04 Scew fx4

 

I bought this used and don't know if it has the tow package? It does have the hitch, lighting and overdrive disable button on the console. Does that mean towing package?

 

It would also have a transmission cooler if it has tow package. Have you looked up vin number and trim codes to see what you can find out?

 

I think it has the transmission cooler? Sits low in front of the radiator? How can I look up the VIN and trim codes. I ran CarFax on it before I bought it would it be on there?