I had long tube headers installed February of 2021 along with a cold air intake, high energy coils, 0 ohm spark plug wires and E3 spark plugs. I had Phil at Tampa Tuning do a street tune as well. Last Friday, April 29,2022, I had the car on a chassis dyno and it pulled 530 HP to the wheels and 571 Lb Ft of torque. I couldn't believe my eyes. Has anyone else had these kind of numbers? I expected around 450 HP, when 530 came up on the screen, I couldn't believe it. The dyno operator did 5 pulls total and it started at 530 and went to 524 on the last one.