I have not had any cars tuned by Bren (unless I get some euro thing one of these days
) but I just wanted to chime in and say that the interactions and professional relationship weve had over the years has been very pleasant and mutually helpful. Very rare to find in this industry.
Bren has also tuned a few of my euro friends' cars with excellent results and I dont hesitate to refer people to him for platforms I dont support.
I've attempted to tune WRXs on 87 octane before with less than awesome results. The low timing made the power absolutely abysmal, and the mileage dropped a bit to to the point where Im not sure the cost savings were there at all. You could easily tune the car on 91 and maybe even possibly 89 with much better results. Interested to see if Bren has any experience with this too.