Yes I have comptech 4-2-1 SS Header as well as Comptech Cat back exhaust. I love the sound that it makes a little loud at low RPM but pretty quiet on the highway at least quiet enough so you can hear your radio. I get commented a lot that people love the sound of the exhaust and how it looks! I DEFINETLY RECOMMEND COMPTECH great quality, I've had my header and exahaust for 3 years now!!!