Extended Lead Times: Exhaust & Intakes are Made to Order (most ship in 4-6 weeks)

Sport Sound Level (21031) 3.0IN Cat-Back SSE Twin 4IN 2019-2021 Silverado Sierra, Denali 5.3L 157WB

SKU: 21031

1 review

SKU: 21031

Tip Finish

Technical specifications

Performance results aren’t guaranteed & may vary.
+57% Flow increase

CORSA's Patented RSC® Technology is designed for an AGGRESSIVE SOUND under acceleration and DRONE-FREE EXPERIENCE during cruise. Every exhaust system is engineered specific to each vehicle application in order to maximize performance and eliminate drone at cruise


2019-2021 Chevrolet Silverado 1500 5.3L V8
Crew Cab/Standard Bed 157" Wheelbase

2019-2021 GMC Sierra 1500 5.3L V8
Crew Cab/Standard Bed 157" Wheelbase

2019-2021 GMC Sierra Denali 1500 5.3L V8
Crew Cab/Standard Bed 157" Wheelbase


3.0" Cat-Back, Single Side Exit with Twin 4.0" Polished Pro-Series Tips
Sport Sound Level

  • Premium Stainless Steel Construction
  • Easy Bolt-on Installation
  • No Welding Needed
  • Patented No-Drone, Reflective Sound Cancellation (RSC®) Technology
  • Straight-through Design
  • Mandrel Bent
  • All Hardware and Detailed Instructions Included
  • Proudly Manufactured in Berea, Ohio


🗒️ Installation Instructions

YEARS: 2019, 2020, 2021

CORSA branded exhaust systems are backed by a Limited Lifetime warranty for as long as you own your vehicle with proof of purchase. (VIEW WARRANTY)

Every vehicle-specific CORSA product is engineered and designed to match the unique properties of the vehicle it is designed for to deliver perfect fitment and performance. CORSA does not recommend or recognize purchases and installations on unspecified vehicles.

Customer Reviews
5.0 Based on 1 Reviews
Write a Review

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
    02 Feb 2021

    Amazing quality and instead of 2-4 weeks shipping, the folks at Corsa were able to get me my system in 3 days! Easy to install, sounds great and very happy with the sound! Absolutely ZERO drone in any gear, at any RPM and even in cylinder deactivation. I couldn’t be happier! Thank you Corsa for making this system for what seems to be a rare 157”WB setup with out factory dual exhaust!

    Robert M.
    United States United States