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computer upgrade


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I own a 1993 sierra ext. cab 4x4 with 350 tbi. The only way to upgrade performance via computer is with a chip change. On the '94's they can be programmed. Is there a difference between the '93 & '94 computer? Everything else is exactly the same. Or so it seems. Can I just install a computer from a '94 and reprogram? Thanks in advance.

canuck13

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