The value of headers

[robert56]

Has anyone actually installed headers on their 4.0L? I have seen some folks speculating on the gains to be had, but does anyone have any hard data? I am thinking about getting the MAC headers - they seem to be a better value than the JBA's. And after the poor fit of the JBA duals system and all of the headaches to get it to fit right, I'm not in a hurry to give them any more of my money. Thanks

Rob

 

[bleeblee]

from what I've seen its onyl like a 2 or 3 HP gain, if you wanna spend 400 bucks for 3 HP go for it.
not me.

 

[rygenstormlocke]

Has anyone actually installed headers on their 4.0L? I have seen some folks speculating on the gains to be had, but does anyone have any hard data? I am thinking about getting the MAC headers - they seem to be a better value than the JBA's. And after the poor fit of the JBA duals system and all of the headaches to get it to fit right, I'm not in a hurry to give them any more of my money. Thanks

Rob

Our stock headers are actually very good, I doubt you will see a gain unless you are running a power adder wtih duals. It is yet to be proven on a dyno one way or another.