Thanks for the words of wisdom. The only holdback is the price. I can find a used 'K03' (stock) for $350 but a new K04 is $1500, bummer! New K03 is $1200 anyway... Did it require a software install to handle the extra power? Any Check Engine Lights from it? I am seriously considering the K04 though, it's been done so many times it is quite doable and its a no-brainer with the engine out anyway! Thanks for the update