FSU FX4

Ok, i have an 06 lariat with the 5.4, and ive heard they have around 303 hp stock. I have Flowemaster super 44s, a Banks air intake system, and a bigger throttle body. What kind of horsepower incrase does all this give?

shotgun

What did the dyno runs show?

lemming303

Not really sure, but I would think around 340 maybe? Get a programmer, such as the Edge evolution, and it will give you a good increase. Just make sure that if you run it on a power setting that you use 91 octane or higher. If not you can cause detonation in the engine, causing damage.

quarantine

About 4hp.

FSU FX4

thanks guys, i read that a bigger throttle body can give up to 25hp alone so i was thinkin closer to 360, but i have no clue on hp for the air system

Franchi

Are you talking rear wheel hp or crank hp?

05FX4-

I doubt it is that high maybe 315-320 to the wheels.

camstng66

For real rwhp, probably somewhere around these 2 until you get a tune.

Supercrewzer

realistically speaking, youre are probably looking at only about 290-300hp to the wheels even with all those mods.

sad, but true

che22879

thats only if you are running boost!