So these are no good? I did go for a higher number which were recommended for lightly tuned cars. Are the pfr range standard plugs and these have a different code because they're iridium? I'm stressing now because the service is Sunday.
Edit: Adding a link to scoobyworld who sell the same plugs.
http://www.scoobyworld.co.uk/catalog/product_info.php?products_id=1254