Had a Kaase Boss9 equipped Mustang show up to our dyno day the past 2 years.
What an animal.
No clue how this guy drives it on the street with that insane power and terrible wheel/tire combo.
It made well over 700 to the tire before it would just blow the tires off, even with a trunk full of people.
Owner believes it to make close to 900 wheel if it hooks up