Hiya well i managed to damage one of my leads while taking off the inlet , so i have a bit of a misfire , which i am assuming is due to the cracked lead i have a set of schimmel ones on now , but might try something else as i dont really rate the quality of them after a while , so just a few questions 1.are bosch oem ones any good? 2.does it really make a difference if the are 10mm 3.what brands are people using ? are these any good?anyone used them? http://cgi.ebay.co.uk/Volkswagen-VR6-Coil-Pack-models-10mm-4-Core-lead-sets-/350290618536?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&a