Just the rubber seals you can buy off eBay you need 8 (2fpr each injector). If you search Bosch injector seal or similar you should find something.
The metal seats you need off the dealers.
Never knew the dealers did metal. I did my seats a few weeks back and there were plasstic.
I have seen metal seats, but I thought they were aftermarket?
On the OP question, I used the ebay seal kit for a tenner and still is holding strong after 200 miles.
