Okay first off, I HATE just asking questions without using the search bar first, but I sold my laptop to put a down payment on my srt-6 so here I am . The search bar doesn't work with my iPhone 3gs hence I am posting this. Could you tell me the benefits and negs about all these after market pullies. I honestly know nothing about them. All I see are like code 3 pullies, 185 and 181 mm. But where are these pullies going into your car and how do they make them faster? Since I'm already posting on here, what are wheel spacers and what do they do? Sorry in advanced for the newbie questions but I want to learn as much as I can about doing mods to my car because this is my first fast car.

Thanks,
Nick