King320

At long last they're here and installed...
I dont feel a HUGE difference, but there's a bit more power, its really subtle though because there is no new noise or visual effect that goes along with the mod. The fourth pic (as you will probably notice) is the crank pulley, nothing was modded here, but it was replaced because my harmonic balancer was falling out good thing i caught it, that would've been a pricey repair bill... ill post pics of the broken one later.

CHB

nice!! I got mine 6 weeks ago, but had no time for install

vraa

Looking good!

str8ridin

Nice pics! Thanks for sharing.

How much did it cost to install or did you do it yourself?

King320

I had it done at a german car repair shop. A couple of the guys there had never heard of underdrive pulleys but they were good at replacing OEM pulleys so i figured i'd give them a shot. It was about $100-120 for the UD install (guessing because i also had the crank pulley replaced and the oil changed so that added on some extra).

tomtomtomtom

How does adding the pulleys effect your warranty?

King320

I dont think it affects warranty, but i dont have one due to mileage so it doesnt matter. Other guys have installed them and said that there was no problem at the dealership. Honestly, they look stock enough that they arent going to notice anything. If you are really concerned about it you could even rub off the evosport logos and it would be completely undetectable except for the different hole shapes. All that these do is reduce the amount of power going to your accessories so it actually should lessen the wear and tear on them, and i doubt that adding 5-10 hp on your crank pulley is going to cause anything.