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Originally Posted by Faze2183
gas milege change??? better worst?? and about how much power incresse did you get or do they got a hp rating?
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Heh, heh, gas mileage really isn't my thing. Power increase is usually a good 20hp to the wheels, give or take. Mine went on the same time as the 6.0l went in, so I really can't give an exact difference.
And the thorleys will work for a Z71, as will the Arizona Speed and Marine, the other guys headers, and Dynatechs. Best bang for the buck would be the Thorleys.
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Daily Driver- 00 Camaro SS A4 1/4- 12.30@118mph 2.14-60ft on street tires
Weekend Warrior-99 Silverado "Dirty" 1/4-11.63@118mph 1.8-60ft