Got another quote, basically for the same type of deal. This guy reckoned that $1,000 is nearer, but would do it as a 'cash job' for $750.
Another quote involves;
· Remove the existing tune file from the factory ECU
· Modify the tune file with a better tune, and remove the DPF and where possible the EGR function
· Remove the DPF from the exhaust and refit DPF Delete Pipe
· Conduct a full DPF Regeneration and reset the factory DPF, Oil, MAF, O2 Sensor Counters (necessary to eliminate the Engine Check Lights and keep the ECU happy)
· Replace engine oil and filter
· Reload the new tune file to your factory ECU
· Road test vehicle
This costs $2200 (1,040 quid). They reckon you can use cheaper oil from then on. You have to sign a waiver as this mod is not technically road legal.
The performance increase seems to be roughly the same as the first two, an extra 70 Nm, which would take it 400! (295 ft-lb).
Vengeance, your suggestion sounds much more sensible. It's ok reading the chip and reprogramming it, but in reality all that is happening is your chip gets read so that it can be backed up and the new 'script' is just a generic one that seems to work. Surely if the car can be tuned on a rolling road, the outcome will be much better. Whilst the extra ooomph is attractive, more appealing is lower revs to get enough torque to keep the beast happy in sixth and hence better fuel consumption. I do around 35,000 Kms per year (21,750 miles) so having a car that has such stunning mid range acceleration yet does that using so little fuel is brilliant. BUT making the car less reliable would be a pretty stupid thing to do.
Do you have any names for Sydney based tuners?, I do go there for work.
The KESS solution is one I'm also looking into.
Thanks to everyone for their contribution