Sound Insulation

[Revvv]

I know that sound insulation isn't a normal addition to a performance car. Insulation adds weight, and weight affects performance. Noise is expected, and usually enjoyed.

However, I need to lower the decibel level in my car. My daughter is sensitive to noise, but she enjoys riding with me from time to time. I'm not worried much about the minute amount of weight that would be evenly distributed throughout the vehicle. I would like to cut the volume of the exhaust, rear end, transmission, etc.



Before anyone suggests it, changing the exhaust is not wanted. The exhaust flow is perfect, as well as the tone. The volume outside of the car is not obnoxious (you will go deaf inside). I was able to see an increase in performance across the board for my application, and I don't want to change anything if I don't have to.

The exhaust system is a full Borla S-Type (Stinger) system with an H mid / downpipe.