Uploaded February 2019 | Updated September 2026, 1 hour ago

---

Increased performance, reduced back pressure, and that high-performance sound all come standard with the Chevrolet Performance 5.3L Cat-Back Single-Exit Exhaust Upgrade system. With 3-inch outer-diameter 304 stainless-steel pipes, this system offers up to a 7-hp improvement at 5,600 rpm and up to 4 additional pound-feet of torque at 4,100 rpm compared to the production exhaust system. [Up to a 35 percent reduction in back pressure at 300 g/s at 600 degrees C makes it all possible,] and the slick 4.5-inch outer-diameter dual wall with angle-cut, high-polished exhaust tip makes a statement on and off road. The system is a bolt-on cat-back and includes everything required for a complete installation. Emissions-legal in all 50 states, this system will not void the New-Vehicle Limited Warranty. The estimated power is based on SAE test procedure J1349.

All-New Silverado:

PART NO. 84173601 / 5.3L Cat-Back Single-Exit Exhaust Upgrade System with Tip - SWB

PART NO. 84173594 / 5.3L Cat-Back Single-Exit Exhaust Upgrade System with Tip - LWB