No, the calipers aren't precisely the same around the drag pack plus the scat pack. I feel the drag packs arrived with Unusual brakes. The main difference in speedo are going to be according to the general circumference from the tire. For those who go along with 22" wheels and https://buywheelsonline75171.blog-a-story.com/24900099/5-essential-elements-for-22-fits-dodge-challenger-charger