Hey everyone. I have a couple of questions about performance. I have a 2002 F150 Screw 4x4 with 5.4. Have installed af1 3", magnaflow muffler, and also have the Hypertech programmer. I would like some suggestions about how to further increase performance without breaking the bank. Thanks for all help.
Chad

 

I'm going with headers along with what you have done.

 

shorties = very little gain for the money

id suggest Efans as a first all around performance and MPG gains

 

how much will headers give u at rear wheels, do they do anything if you stock exhaust, i am lost on the concept of headers whats the purpose of them, also whats the usual price for someone to install these

 

Shorties = O gains

Long Tubes = 30hp gain- Max.

built54 tested both on the dyno..

 

Two dyno runs on one N/A truck is not a definitive comparison.
Gains from the shorties are low, but they are bolt on without other exhaust mods.

 

$500 get you long tube OBX headers off ebay that include cats and the y-pipe and bolt directly to the factory location

 

how hard are the E-fans to install? ive got a CAI and headers with no cats and dynomaxx mufflers. and im in the same place looking for more power without breaking the bank. was lookin into power programmers. the sniper looks good anyone have/heard anything about this programmer?

 

brew can you point me toward the link on the headers built dyno'd, I must have missed it. Thanks

 

PM user "built54" for detailed info - he's posted the results a few times and he's been online lately - He's one of the Dr's of Exhaust configurations and has tried quite a few combo's.

You've seen my vids - big difference after the longtube install.

 

yeh shorties i saw little gain it was enough to make a feelable difference but not as much as the long tubes

 

Thanks guys, I'll be doing some homework before the $ go out.