mbradbrook 0 Posted March 30, 2013 Afternoon all. Took my VR6 out for a drive today after it had been laid up over winter. I noticed that when accelerating hard there was a slight stutter. The coil pack was changed about 500 miles ago so I don't think it is that. I've just ordered some blue igniter ht leads to see if this fixes the problem. I noticed on the C&R website that it says the Blue Igniter leads do not need the spark plug ferrules. I've just taken a plug out of mine and noticed that the end of the spark plug are not threaded and have a ferrule that is part of the plug and can not be unscrewed (they are VW plugs). Can someone confirm that the the Blue Igniter leads are a direct replacement for VW ones? Cheers Matt Quote Share this post Link to post Share on other sites