Dual Exhaust
I am thinking about adding a gt exhaust to my v6. Do you all know if it would sound good, or even possibly add some horsepower even the smallest amount? Also i am thinking about getting a underdrive pulley, but i dont know what i need to get for it, or what the differences are. What would you all suggest? My mustang is a 1999 Mustang V6. So any suggestings/comments would help.
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