I have talked with a friend of mine and told him that when my 06 gets here I have a lot of mods that I would like to do to it, including underdrive pulleys. In my opinion it frees up horsepower...how much im not sure but every bit counts. He says that underdrive pulleys have a negative affect on your alternator/accesories. Is this true?
So I guess my question is (to get to the point)
Do underdrive pulleys have any negative impact to any part of the car?
How much horsepower does underdrive pulleys give you back?
So I guess my question is (to get to the point)
Do underdrive pulleys have any negative impact to any part of the car?
How much horsepower does underdrive pulleys give you back?