So you’ve visited the site here and are thinking about ordering an IOH Kit for your Duramax but you’re saying to yourself… “Self, is all of this what it’s cracked up to be?”
Well, here is what one Duramax owner had to say about Killer Bee: http://www.duramaxforum.com/forum/04-5-05-lly-performance-parts-discussion/10499-unbiased-review-killer-bee.html

I too have your IOH kit and true CAI am very pleased with both they made a huge differance , I was thinking about selling my truck if I couldn’tfix it . Can’t wait to talk to Mike about EFI ,I am planning to do it soon just about enough money saved . Thanks Michael