its actually very easy to fully service you turbo , ive done prob 10 , all kits from MSD, the biggest arse ache is trying to remove seized studs from the housings , you WILL need to heat most of them up !, fitting the kit is very easy, specially as all garret parts are individually balanced

just to put your mind at rest , i built one a while back that eat the thrust in about 50miles i thought WTF , so i took it to a local turbo geezer who checked the balance and it was fine WELL within spec , was something other than the kit that had failed. so new kit and has been fine since !