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You're welcome bro. It's gotta burn you up that vacation you just took your girl on... could have been used towards a blower and 450whp. That's true love! J/K ;-)
buy a tune immediatly. you are probably running dangerously lean with no cats and a high flow intake. better yet, go to a dyno shop and have it dyno-tuned with a wide band.
eh, cats wont have any effect on a/f @ the MAF and the KN intake isnt exactly going to change the readings that much either usually. He might be a tad lean with his setup but he would have thrown a code if it was excessive