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  1. Awesome course and material. Forums and youtube are great but this was the fundamental material that taught me the ‘how and why’ process to tune my 5.3/4l60e swapped K1500(Cam, Headers, CAI)

  2. Top notch information on GM transmission tuning, definitely a great book to keep by you if you need a reference! The information is well laid out and descriptive on what needs to be done.

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