Check out this video if you haven't already seen it:
Provides great visuals and explanation of how the LFX integrated the exhaust manifold into the cylinder head. I was planning on getting a 2012 V6, but am now second guessing because I can't throw some headers on it :( Anyone else share this disappointment? Although the video boasts improved air flow, I'm assuming it still won't match the air you can force out with headers??