So, I'll try to keep this brief. I have a 2009 g8 gt. By end of this summer, it will be paid off, all mine. So, what's left but dump lots of money into it? I have a few mods already, but that's irrelevant. I've given FI a great deal of consideration but have come to this conclusion: http://www.mastmotorsports.com/2010/product-view.php?cat=Gen IV Drop In&id=111 I'm concerned about fitment, but also compatibility with the 6l80e. I know I'll need a torque converter (what size/stall?) Basically looking for some input. I'll certainly contact Mast in the future for their professional opinions. Thanks for your time, I appreciate any input!