I have a GHL system on mine. It has an ungodly amount of resonance at 2000rpm. They are sending me another system to see if there is any difference. If it doesn't get better, I am going to go to the Corsas. I have the Corsa on my vette and love it. I did not know Corsa made the system for the H3 until I already had the GHL in my garage. The GHL is definitely the worst I have ever heard on a vehicle. Go Corsa!
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