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Originally Posted by Black331
I've been thinking of doing an underdrive pulley but was wondering if there are any drawbacks (besides the headlight dimmingat idle which I don't care about)??? I have heard some people have had engine troubles caused by underdrive pulleys? Is this true?
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You'll care when your alternator goes out. Do yourself a favor and upgrade your battery, or get a tune and raise your idle, or just do like I did yesterday and buy a PA Performance alternator that is wayyy better than the stocker. Think about it like this, everytime your lights blink, that's a hit that your alternator is taking.