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2001 cadillac seville

  1. Seville and Eldorado Forum
    I might be crazy for trying to make this ting go any faster than the stock N* will let me now, I'm working with what I have yk. But, does anyone know about ECU tuning, if its possible at all and if not what can I do to try to at least get it to STS numbers. I found a chip that claims to actually...
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