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29 Posts
I've been planning on purchasing an underdrive pully/balancer for my 04 Goat, but was wonder what kind of results others have had with them. I know that it worked really well on a 1993 Mustang, as I once had one, but it was a real drain on the alternator/charging system...Does anyone know if it would affect the charging system on the 04 GTO, I am especially concerned because it is my daily driver.