Ditto on Hammer and 97snakedriver. Don't mess with the chip. For about the price of the chip get your 3.73s put in. Trust us. A chip is useless right now. (unless you burn rice)
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FOR SALE: 1996 Mustang GTS: 5-speed, K&N, removed air silencer, 3.73s, 16 inch Mustang GT wheels; 48,000 miles. $11,500