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Old 07-05-2012   #2
rbinck's Avatar
Join Date: Mar 2009
Location: Katy, TX
Posts: 772
Default Re: Good News! BMW E46 Has Upgrade! Faster than Before!

Underdrive pulleys can be problematic in some conditions. Since the accessories like the alternator, power steering pump, air conditioner compressor, water pump, etc run slower with the underdrive pulleys, they may not work efficiently in stop and go and/or high temperature climates. Here in Houston I would not recommend.
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