The sports car that gets the most attention is the one that has an aggressive exhaust note. Let your hybrid’s exhaust whisper, allow your Corvette C5 to roar. Not only does the Corvette-C5-SLP-97-04-Loud-Mouth-Exhaust add an aggressive note to the Corvette’s exhaust, it adds horsepower. This bolt on rear exhaust system is twenty pounds lighter than stock exhaust and adds fifteen horsepower. That means to a three hundred fifty horsepower post-2001 Corvette, you now have three hundred sixty-five horsepower, and slightly less weight.