Where' the best place to get coil pack connectors? Zcentre? USA?

Concept Z do cheap replicas

But what about decent originals?

Don't waste your time with second hand connectors. Just get these unless you're not going for a replacement loom:

 

http://www.zcentre.co.uk/index.php?page=shop.product_details&flypage=flypage.pbv.tpl&product_id=92&category_id=67&option=com_virtuemart&Itemid=7

But what about decent originals?

 

They're also available but are a lot more expensive. Probably not worth it in this case since they eventually break.

It's cheaper to buy these from Concept Z than it is from Z Centre, I just some idle connectors and other bits from CZP and with 15$ shipping they worked out much cheaper than the Z Centre, they are very expensive.