Removed Air Pump
 

Thanks to the new alternator and water pump pulleys, I was finally able to remove the air pump.

I have not been using the air pump since I removed the catalytic converter, so removing the pump reduced a little of the parasitic load on the engine, as well has removing 5.5Kg of dead weight from the front of the car and leaving a little more room for air to flow through the engine bay.

Can only be good :-)