You have an LS1, Don has the software to tune it already if I'm correct. Take advantage of his expertise and get it done right. Even if you were to get HP Tuners it will cost you 450 for the software alone and its not easy to learn. Take advantage of the fact that you have an LS1 and not and LT1 like me that I'm going need to bring Don the software to tune it, lube and knee pads when I go to try to get him to tune mine
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