The headers were install by Goodson Acura in Irving TX for $230.00. No questions or hassles and they warranty there work for the life of the car and it is cover under warranty. What a difference the header does to the 03 CLS 6spd. The car feels much stronger all the way to the redline. Noise, no big difference compare to stock maybe somewhat raspy around 3500RPM. Very satisfied with Comptech headers and very nice finish. ALso had the sway bar installed for $116. and the spoiler for $150.

 

Congrats dude, those were my first two mods also. Headers are great and the sways really tightened up the body roll