I am extremely pleased with the sound of my Magnaflow muffler and SLP delete. I wanted a bit more sound, but didnt want it "loud" by any means. It took me 3 stages to be happy with it. The first thing I did was install the SLP resonator delete kit, which hardly made a difference in volume (but looks awesome!) The next thing I did was take it to a local reputable muffler shop and had them cut out the factory muffler and install a Magnaflow 14'' muffler. It was too loud for my taste. It sounded good, great tone, idle rumble was right on, but when under accell it was LOUD. I went back and had him remove it and install the larger case magnaflow (22'' case partnumber 12589) and it sounds JUST RIGHT. It has a wonderful idle sound, under cruising it is smooth and stealthy but has a low rumble, but when you get into the throttle it barks nicely. Overall I am very pleased with the result. I also have a Volant CAI so my intake roar takes a part in the noise as well. Hope this helps!