Gibson Header or JBA

Hi!

I'm planning to upgrade my exhaust system. Which would you recommend? Gibson Header or JBA?

I didnt know that Gibson makes a header, what is the part number that will fit?

And is this first or second gen, 3.3 or 4 ?

What Xterra do you have?

There's the model year, which helps a lot, and, for the pre-2005's, there's a 4 cyl and 2 different 6 cyl engine options...

and then there's auto and manual transmissions, etc.


So, whatcha got?