0235SS93

iTrader: (1)

Well, I won't be putting an electric water pump on my car, so an underdrive pulley is my last bolt-on. I have an A4, will I have charging issues? Or should I buy the overdrive alternator pulley? Will the stock belts work with an u/d crank & o/d Alt pulley setup? How much hp loss will there be with the o/d Alt pulley? Should I just get the u/d crank pulley?

Tainted

iTrader: (9)

charging issues wont be a problem IF you dont ahve anymore than a stock or near stock stereo.

these pulleys are smaller, so obviously you need shorter belts, tsp has the pullies and belts.

bryan04h

iTrader: (2)

if you order the asp pulley they should give the part # of the cable you will need to pick up...you could go ahead and pick up the asp alt pulley that will go with the underdrive pulley...

Matt D

iTrader: (49)

Just get the underdrive pulley and don't waste your time with the alternator one. I have all of the bolt-ons with just the underdrive pulley, and have never had a charging issue on either of my cars.