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I have yet to see proof it increases power. I've witnessed a half dozen LT4 runs where the engine lost power. Perhaps they have an updated version.
If you already have a laptop, for ~$200 you can buy LT1 Edit and have full control over your programming vs installing a questionable cookie cutter program and being able to change a few parameters.
I sent them an e-mail a week ago requesting what they offered for tuning my LT4 with Hot Cam and have not heard a peep from them. I am not impressed with their customer service at this point. I would page them e-mail and see what response you get before buying. Perhaps they have simply become a mass merchandiser through various outlets as others have become without any regard to customer satisfaction.
If you already have a laptop, for ~$200 you can buy LT1 Edit and have full control over your programming vs installing a questionable cookie cutter program and being able to change a few parameters.
That's the price for 94-95 LT1s. The 96-97 OBD2 version costs $550. Someday...