I used a short 5mm hex tool to loosen the fasteners to the intake. You do not need a long 5 mm hex tool if you are wondering. Note that the front coils look new because I had install 3 new coils at $60 each on the front side and had my daughter drive it for about 1000 miles. I will relocate these 3 coils to the rear because the Lexus had 130,000 miles and I did not feel comfortable reinstalling coils to the rear with 130,000 miles. 1000 miles is better and I had to made sure they were OK.