Looks like JBA has lowered their prices on the v6 headers for 05-07. http://www.v6mustangstuff.com/05V6Headers.htm
It's about time. It appears they are now less than the JBAs for the 4.0L Ranger. WOOT. One more model year with no changes in the engine same design and they should see the mid-$300s for the Ceramic coated.
They should make 10-15rwhp with those headers. Pauls High Performance runs JBA headers on their 10 sec v6 stang.