2.5 Liter/Litre Factory Motor
Hello, wanting to run headers on a 2017 sti. Wanting to know if I should run UEL or EL headers? Mainly looking at Tomei EL Headers but UEL do keep the rumble but i’ve heard a lot of bad things about them. Also would it be good to run the Cylinder 4 cooler if I ran UEL headers?