Originally Posted by xxxJohnBoyxxx

Been removed for 1.5 years. Needed the room in my engine bay to hide my meth system where the pump was, it's heavy, no use for it when you don't have a cat converter. Track headers don't have the hook-up for the air pump either. Lots of reasons like the ugly piping going accross the front of the engine to the header, etc. I remove all items not needed in my setup. Weight reduction is free excelleration and everything adds up when you do a lot of small things.

The air pump only runs for 2-3 minutes during warm-up to help the cat reach operating temp sooner. That is it's only purpose and I bet it weights 10 pounds.