Rygen...whew... just took her out for an evening spin down some well-known back roads... she gets up to 80 a lil faster now! It's a marked improvement over the 87 octane tune. I was trying out both the 91 performance and 91 torque tunes... at the moment, I'm leaning towards to the torque tune... I'll give each one a week, then decide. But, ya know... all of our cars are so incredibly unique... just love hearing about all of your rides!