Glasspack mufflers do not have extra sound-absorbing material. So, in order to absorb sound, they use the glass layer and packing. But if you are making your order on partcatalog.com, you can always inquire about the recommended tube diameter for your exhaust system by providing your make and model. This can lead to a significant decrease in torque and horsepower as well as rpm.

Typically, this includes the pipe connecting the pipe from the catalytic converter to the muffler, the muffler, and the tailpipe or exhaust tips. Because these types of exhaust systems are installed after the emissions monitoring systems of a vehicle, they won’t impede its ability to measure emissions. However, you must be aware of your local noise regulations and adhere to them. With relatively short install times when using a high-quality system from MagnaFlow, exhaust modifications can yield the instant gratification of your ride sounding as fast as it looks. When you purchase an aftermarket exhaust system like a cat-back exhaust, you’re in control of horsepower and sound output as pipe diameter and muffler type are in your hands.

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