I have the Greddy MX catback with no cat on my car and it's SUPER quiet. If I let off the gas you can't even hear my car, it's great. Just how I wanted it. The intake gives the nice rumble and the exhaust has a nice low tone. Plus it sits tucked up under the bumper and looks like it belongs there, except for the fact it's chromed out and has a 4in tip
