I would recommend getting it updated. Had mine done mostly to see if there was any change to the stock tune and to see if it'd help with traction.
I had mine updated, cost me $80-90 thru Village Motors. No performance gains to peak off that I noticed, the car just seemed a little happier. Def much better in the wet.
What I noticed since I've had it done.
1. ESP actually works now on the road not just a dirt road!
2. The hill sensor now works alot better so the decel fuel cut off is much better and it enrichens better when going up a hill.
3. They improved the shift reductions, mind u mine were already better then it due to tuning them off a VE Omega.
4. Slightly better fuel consumption? Seems to get more out of the tank, I think it's due to the improved decell fuel cut off when coasting down a hill on the highway etc.
Mines a 06 VZ Executive. There was a heap of computers they updated not just the ECU and TCU
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2009 VE SS SILVER SEDAN - Twin Amps... Tune in progress (more for response and power) then outright KW on a dyno
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