Yeah I would recommend the bbk cai. Definitely get the bama tuner. I installed the "no tune required" bbk blackout and you can really feel the difference. I also have true dual x pipes and it really goes well with my bbk, even without a tune. Another good site to check out is www.streetsideauto.com
That's where I go when AM is out of stock on something I want.
'06 4.0 V6 custom x pipes, cai, screamin demon coil pack, 10mm live wires spark plug wires, NGK iridium plugs, 93 octane bama tune