Cat converters act like a small muffler. Test pipes are going to make the exhaust sound tinny and raspy, as people have said on here for as long as I can remember. I don't really get why people sacrifice a nice smooth exhaust note (and pollution) for the sake of a few extra HP.
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Now: 2017 Corvette Grand Sport, 2021 AMG C63 S sedan
Past: 2011.5 M3 sedan ZCP
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