i think im around $650 700 between buying the pulleys having them installed having them uninstalled and problems im having now that may or may not be because of them. contact cfm and make sure u got them after the recall. the bolt was too weak and broke. also before having them installed make 100% sure the installer has all of the necessary tools. i was carless for a week and a day because my dealership started and couldnt finish without the timing tool or something. i noticed a bit of a gain if u have nothing else left to do i would say do them only be careful. i noticed a much bigger gain from their throttle body for $50 more and and an easy 10 minute install in the driveway rather than the extra installation cost and time. i just quit on the pulleys they seemed to be too much of an inconvenience. again make sure u got them after the recall so u dont waste ur time and money. not to make cfm look bad they were very helpful and lenient(sp?) and all of the other products ive recieved from them were great but the pulleys seem to be hit or miss but more often a miss for people on here. if they will let u return them i would recomend getting everything else done first. maybe a header also is only $50 more. balance shaft delete for $30. i wouldnt say they do nothing but there are more productive ways to spend the money.
