we've discussed this...
labour is an ESTIMATE to begin with...it might balloon if ur engine needs more maintainance, ie seals and gaskets, that need to be replaced. its a 13 year old car. this is bound to happen.
plus all your oils and lubes because they should look over the whole car, not just the engine. gearbox, diffs, transfer case. ALL of these need fluids and they all cost money.
i told u GTRs were expensive to keep before u bought it
including cost of ur parts id still expect around 2k. just like i told you to expect after seeing my 100 000k write up!