2004-2007 Cadillac CTS-V Performance Mods Discussion, ? for you cam guys in Cadillac CTS-V Series Forum - 2004 - 2007; I have an appt. to take my car in on the 2nd for cam/ headers/ tune/ misc. As I was ...
I have an appt. to take my car in on the 2nd for cam/ headers/ tune/ misc. As I was driving today, I was wondering if having a cam and headers alters cabin noise and by how much. The V is my DD and one of my favorite features of the car is how well it blocks out outside noise. Let me know what you think. Thankx.
Headers with the stock exhaust will offer a bit more muscular sound, but not be very noticeable within the cabin. An aftermarket camshaft will likely have more aggressive ramp rates (you are changing the valvesprings, right), and that will create more valvetrain noise, which will be amplified with the thin walled headers. However, with the stock exhaust, it will be well within DD NVH limits. Just don't change the stock exhaust. It's absolutely not worth it for your application.
Yes, I am upgrading my valvetrain as well. I have already installed a Corsa cat-back, so I imagine with the headers and cam installed the sound will be throaty outside of the car. Again my concern is how loud/ annoying will it be inside.
I just had a cam installed with all new drivetrain components and headers (already installed). My car is definitely much louder on the outside but only marginally louder on the inside. It's not too bad...but I have cutouts for when I want to really get loud.