Our T6 has the BSR PPC ECU software (www.bsrab.se). Put it in around 33,000 miles, has now 154,000 miles. I like the PPC, you can switch back and forth between factory and chipping settings. On the T6 the effects are relatively modest, but I think the 2.5T is an excellent engine for chipping.
IPD is a good reputable company as well, we had an IPD ECU on our 850 for several years without any issues.
Thanks for the info. May I ask where/who did you purchase from?
Also do you normally revert to original config when you take it in to the dealer.
I suspect you are using indy shops for work now?
also how were/are the updates when the ecu config changes?
The reason I bought mine from BSR was that at the time (in 2004), IPD did not have a portable unit. They did only flashing of the ECU, which was very unpractical as you had to send the ECU to IPD for reflashing every time Volvo performed software upgrades on your car that overran your ECU upgrade. Since then IPD is back in the game with their version, http://www.ipdusa.com/ipd-Soft...og-37.
Yes, I did switch back to original settings when taking it to the dealer for major service that I knew would involve software upgrades. Some times the BSR software would not upload after such a Volvo software upgrade due to some change to critical parameters. In such case I would send the new Volvo software to BSR in Sweden via Internet and I would get back a new, upgraded software from BSR that would work with the new Volvo upgrade. Sounds complicated, but it actually was pretty straight forward. Here's an explanation how BSR's PPC unit works: http://www.partsforsaabs.com/bsr_ppc.php
If I would buy today, I would definitely go with IPD. You can't go wrong with those guys. Good, tested products and great customer service.