Harmonic Balancer (Modified ABA for 16V or AEB 1.8T Conversion with ABA Serpentine Drive System) OE# 037 105 243 B. This pulley for installing 16v and AEB 1.8t heads and using ABA tall block and ABA accessories. Same offset as the ABF pulley. This pulley is precision machined and modified on our CNC milling center. Each pulley is dialed in perfectly with a dial indicator. We then face off the required amount. The pulley is then bored to accept our precision CNC machined hub-centric insert. To maintain absolute quality, this modification is only done by our in-house skilled machinists. ### Out of stock till April 15th ###