the second link posted there, the ebay one, its a link to the people i used to get some uprated x30xe injectors ultrasonically cleaned, tested, new filters and returned to me for my cavalier. they were brilliant and the service was great. it's a worthwhile effort and i really do recommend them. if you are sending your injectors off then they will give you a report too, a before and after performance test, which makes for interesting reading.
http://www.injectortune.co.uk/
