Good muffler. Didn't give my car as much "sound" as I would have liked, but it sounded a little worse (I even added resonance spikes, which might have helped a bit). You'll have to save up and buy another Thrush model or brand to get more rumble. I will clarify one thing (for others before they buy it and other installation details). This is a 2-1/2 inch inner diameter (not outer diameter). I didn't check this when I bought it (by googling it) and had to run to the local shop to buy additional parts for the installation (as my factory mufflers were already buzzing). The rest of the installation was easy - just got it get the clamps, lit it and tightened it. .