Silverado 5.3L Performance Retrofit Muffler

Deleting the valve will change the volume and tone of your system but it is not necessary to remove it. Here is a link to a video explaining how to simply get it to stay open and how it sounds stuck open compared to functioning properly.

A retrofit muffler increases exhaust flow, resulting in a more aggressive sound and slight improvements in horsepower and torque. It’s an ideal modification for Silverado 1500 owners seeking a performance upgrade. If you want it even louder check out our muffler delete!

While an exhaust system may improve throttle response and horsepower, the impact on fuel efficiency can vary. Some users report slight improvements, while others note no significant change. High-flow exhausts reduce backpressure, but driving style and other modifications play a big role in fuel savings