I did the BBK headers with pypes x pipe with cat delete, sct tuner, and K&N intake. I was concerned with the volume so I kept the stock mufflers. I have a GT premium convertible. It sounds great at low end and idle, has a nice classic rumble to it. At cruising altitude with the top down I can still hear the radio fine and carry a conversation. It sounds great with extra pep.
Stainless Works Headers
Well easy to install it is not. Not because of the headers just the nature of the beast. Installed the high flow cats and performance exhaust as well. A lot of work in the driveway but well worth it. all the factory hangers points worked great with the supplied hardware. Sounds awesome and added a big kick.