I believe this should be for a V8 type vehicle, something with more power, compression, horsepower, etc., not a V6 such as my vehicle as it resonates an extremely annoying "drone" sound inside the vehicle and only goes away at certain RPMs.
The muffler is everything it said it was, and very easy to install. The price was very reasonable compared to what I could buy it locally for. The only thing that would be nice is that 2 nuts be included with the muffler.