Blast the stock ones and have them powder coated a sexy color or some fresh zinc...
I don't know if your a/c still works, but I think i gained more "power" from shaving weight by getting rid of all the a/c components, swapping the fog lights for CF ducts and CF hood (in total @100lbs.) than installing the pulleys.
I would actually like to see someone come up with a modern serpentine belt system (with automatic tensioning) for our cars. V-belts that have to be manually tensioned are so.....1980s. Too little tension they slip and drive you nuts....too much tension they break and wear out whatever they are spinning....
I ran those VAC pulleys on my 320is. I like them. Bought another set for the M3. They're nice pieces. Even at lower revs (street) I never had an issue with the alt or coolant. Temp didn't move at all for me.
Last edited by Az in Oz; 06-30-2012 at 01:53 AM.
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