Do not know much about the old v-6's but I would look at holly Carbs and see what the have. Flowmaster will increase horsepower unless you get too big of pipes. You have to have a certian amout of back pressure or you will lose HP. The new ones if you go over 2.5 inch exhaust you will lose horsepower instead of gaining it. Well good luck and tell us how is comes out. Also get magizaines they will also help from ads and other stuff.
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2003 Sonic Blue Cobra
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