Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Check before buying.

This was way too loud. Wasted $200 on this mistake.Should have called the factory before buying to see what is recommended for my vehicle. Paid for $100 muffler then paid muffler shop $50 to install then drove 5 miles and figured out this was way too loud to even hear the radio. Then paid $50 to take it off and re-install original factory muffler. Called factory and they said this was too short of a muffler for my vehicle. Lesson--- ask the experts before buying. Muffler quality is very good and would recommend this particular brand.