Not all it's hyped up to be
I got the pn 14464blk corsa extreme sound level exhaust. If this is loud, I must be going deaf because I'm pretty sure those Hondas I'm passing are infinitely louder than me. The sound/tone is good but the volume is nowhere near as advertised on their YouTube video. At idle it gets really quiet. From inside the car it's impossible to hear much of the exhaust sound.
Corsa Catback for 2015 Sierra Denali 6.2
I have done about every kind of exhaust you can do on on muscles cars, jeeps, and modern V-8's. This exhaust sounds better than anything I have ever done including brands like Flowmaster, Borla and other major names. The best part is there is no drone, I mean it -zero drone at any speed, at 40 mph and above all I hear is my tires, but when you get on the gas it sounds like a beast. What ever Corsa does gives it a different sound than anything out there, almost like an exotic sports car.