The UDP's could affect your voltage if you have High watt car amps,also if you ever plan on supercharging your gonna have to put the stock ones back on!
Hey Brutal, Kenne Bell comes with UDPs...I put a slightly smaller pulley on my alternator to keep the voltage up, it still runs a bit warmer than I care for, esp here in Tampa you know how that goes unless your bolting down the Howard Frankland.
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"Goose, Hollywood's fine, I want Viper"
1995 Mustang GT Cnv 347(427 stroker being built!) almost done!
1996 Cobra with Kenne Bell 2.1 Supercharger and every other conceivable part you can bolt on it...650hp upgrade in the works
2003 Infiniti M45 V8 340 hp...a methadone treatment for reformed Mustang drivers