Thanks for the replies, Allen and aM. Bieng an "old fart" I am always trying to figure out stuff. I have dyno'ed my car a few times in the past and was not really impressed with the numbers (hp 273/284 tq 273/291), with Mad Dad and PPK1 and DCT trans (which took a while to figure out how to dyno it) I always came away wondering if my N55 was working at it's max output. I have thought about a JB4 or COBB install but only after the warrenty is up Dec.14. Maybe a dyno tune is for me, as I presume my N55 will be tuned to the max and running the best it can. Would this be a correct assumption??
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