Originally Posted by M3Denver
What kind of Dyno is it?
Higher octane gas is available at Hill petroleum/Sunoco / vpfuels in Denver FYI
You don't need to run 100 octane at high elevations, 91 should be fine on a NA car.
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, more to come
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk