Quote:
Originally Posted by Chris03HD
I know with my Harley truck, I can use the hand held programer to change the tire size, and it makes the nec. changes in the PCM.
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hypertech power programmer
..I had one in my last truck, 96' 4" lifted tahoe, man that was a cool toy! not only could you adjust the speedo for large tires, you could also change the trans. shift points, and even advance the engine timing for added power(that requires premium fuel tho)