3.4/3.8 Performance Headers
 

First i'll start with the 3.8:

Clear Image Automotive Headers
http://www.clearimageautomotive.com/.../V6Headers.htm
http://www.clearimageautomotive.com/.../V6Headers.jpg
These are probably the best, and most expensive. with the headers, y-pipe, and gaskets, satin finish is about $585 and ceramic coated is $605.

RKSport Headers
http://ftpp.net/V6/Exhaust/v6_headers.htm
http://ftpp.net/images/CAM-E6501.jpeg
These are still expensive, and have been known to leak at the flanges. price is $490 for ceramic coated, however these since these are "off road only" i assume that means they do NOT have provisions for O2 sensors, so you would also need some O2 sims.

PaceSetter Headers

Painted:
http://ftpp.net/V6/Exhaust/v6_headers.htm
https://static.summitracing.com/glob...-70-1209_w.jpg

Ceramic coated:
http://ftpp.net/V6/Exhaust/v6_headers.htm
https://static.summitracing.com/glob...-72c1209_w.jpg
Probably the best and most effective. Painted is $195 and ceramic coated is $295



Now, The 3.4L Options

RKSport Headers
http://ftpp.net/V6/Exhaust/v6_headers.htm
http://ftpp.net/images/CAM-E6501.jpeg
*Not actual pic, but theyre similar
These are ceramic coated, and have no problems leaking, but these are also expensive. about $490.

PaceSetter Headers
Painted:
http://ftpp.net/V6/Exhaust/v6_headers.htm
https://static.summitracing.com/glob...sm-70-1208.jpg

Ceramic coated:
http://ftpp.net/V6/Exhaust/v6_headers.htm
https://static.summitracing.com/glob...-72c1208_w.jpg
These are the best and cheapest and most effective headers available for the 3.4. painted is $195 and ceramic coated is $295.