So heres the deal. I am shopping for some headers for my 5.4l screw. What do you think would be the best bang (GRUNT) for the buck? Tell me what you think.

 

Trust me. Its something you don't want to have to do twice if you don't have to. Dynatech makes the best for our trucks IMO.

http://www.afabcorp.com/AFCO_Dynatec...ord-f150_99-03

Run the off-road system if you can. More power and less money out of pocket.

 

Thanks for the info but how would you be able to do the off-system with no cats? I dont think that would work with the o2 sensors. If you know something i dont spill the beans man.

 

After you have it installed get a custom tune and have them turn off the rear o2 sensors.

 

They can do that? Sweet. I bet that costs a pretty penny huh?

 

I'd delete the EGR system to while I was installing headers. It will clean up the engine compartment also. They can also shut the EGR and rear o2 sensors off with a custom tune. I paid 500 for a custom dyno tune along with an xcal2.

 

long tubes, anything else is a bang for the lost buck...

 

long tubes, anything else is a bang for the lost buck...

 

Awesome dude, thanks alot for the tips, do you have the dynatech headers and off-road system? Do you recommend doing it before or after a treatment of cold air intake? Oh and by the way I already have strait pipes after the cats so I bet it will really rumble without the cats. Check em out.
https://www.f150online.com/galleries....cfm?num=15551

 

Question probably stupid! are headers a good idea for a 4.2L? just wondering it might be something else to add to the list!

 

if they are long tubes yes

 

Engine=pump, let the pump breath.

 

I have read that two into ones will give more tork, what do you take on that?

 

thank you thumper... now the question is what do i search for any clue! point me in the right direction!

 

Sorry man I am in the same boat, trying to find the best bang for the buck.