I do not have a clip of mine. However,the sound is slightly deeper, a bit more raw, throaty, but nothing like a magnaflowor many of the other exhaust mods. I'm told it is a 3 to 5 HP increase but I didn't percieve much of a difference.

At least not until the CAI was installed.

If what you want is a different, much more throaty exhaust sound, the back cat deletes will dissapoint.