Today I changed the oil and installed the ECSTuning Billet Water Pump Pulley and new belts. Man was that a real PITA! So much easier to do on a ZHP. Turns out the stock water pump pulley on the ///M isn't plastic like it is on the ZHP. So for $60 and a few hours of work I now have a lighter pulley with some bling. The diameter is the same on both.
ECSTunings Description:
A "bolt on and go" answer to a weak, unattractive water pump pulley.
Pulley kit includes new drive belt and bolts to mount the pulley.
If you've ever replaced a broken or cracked water pump pulley and wondered why the engineers at BMW didn't make it out of something more durable, you're not the only one.
CNC machined from 6061 billet aluminum, our ECS pulley will never crack or break leaving you on the side of the road. Hard anodized finish to help prevent corrosion. This pulley is a direct replacement using the factory belt and original hardware. If you are replacing your water pump, now is the time to get rid of that plastic pulley.
Also got my metal washer mounted to my cell phone case for the Core 360 cell phone mount to go with the Bimmian bracket.
Will be just like Charlie's!