I was doing some research on the web, and the only place I have found that list the new JBA Evol Exhaust for the 05/06 Frontier is
www.performancecenter.com.
The picture and description on their web site is of the Titan system, but they do list the Frontier P/N's and prices.
50-1410 - $377.30 (Aluminized)
30-1410 - $524.30 (Stainless Steel)
These prices also include shipping! They had performance specs posted as well, but the dyno chart was for the Titan! These numbers, however did not match the dyno chart, so they may be for the Frontier System:
HP - 10-15 HP Increase
Torque - 20-25 ft lbs increase
So, this Group Buy is a pretty decent price!
I know information is coming slowly, but as it becomes available, I'll update this post! Thanks to all who are interested and will help make this happen!