I thought the T meant turbo thanks for putting me right.
Yes think I'm going to go for the Bosch plugs. Where did u get your from 56OCTYVRS, I had a look on halfords website so I can pick some up on the way back from work but there's loads on there and I'm not sure which ones are correct?
504, 510 and 520 all super apparently
Are any of them the right ones?