First off thanks for all the replies. They have been great. On the question of waiting before turning the engine off, I have installed a Blitz turbo timer which senses how much the turbo has been working and has a time delay so that when you turn your key off the engine continues to run for some time, depending on how hard the turbos have been working. I like it a lot and is an extra security feature for the turbos. As I am very knew to this, is anyone willing to provide me with their email address offline so that I can ask turbo related questions every now and then. I asked a local performance shop the same question I posted to this group and they said I should have no problem with installing a different spec turbo, needless to say that after the replies I received from this group I no longer can trust them. Thanks Max To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/