Pullies
 

I have a question about underdrive pulleys for my 96 Mustang Cobra. I am curious if this also underdrives the water pump? The 96 Cobras are notorious for running hot in the summer time. If so will this make my car heat up worse, or over heat? Also will underdriving my alternator kick on my Volt Light if I run my stereo, which includes a 400 watt amp? Thanks

Ooops, apparently I got it posted twice... Sorry

I got the duplicate post....
(Warning: Moderators on duty)

Have you had the cooling upgrade?

As far as the dimming of lights, with a big after market amp, probably. But somebody, I think March makes a smaller pulley for the alternator, so you can use underdrive pulleys with out effecting the charging.