Update: so I'm now running the diablo tune on 91 with 30 point booster. No knocking or pinging. Didn't really feel much different from the adjusted 87 at first, the real difference is on the highway. After 65 was kinda blah, left you wanting more. The passing power was there, just felt like it should have had more. Now it just eats! Came up on a car do 70, got in to pass, pass the car look down and I'm doing 95. Stayed in it just to see. All the way to 115 before I let off, and non of that blah feeling. I love my Avy all over again!