Sport / 3.0 in Cat-Back DRE 4.0 in Twin Tips | 2021-2024 Chevrolet Tahoe, GMC Yukon 5.3L (21127)
"This system was easy to install and sounds amazing! If your thinking about buying it but not sure..... do it!" - Brent G.
Chevrolet Tahoe, GMC Yukon 5.3L
3.0 in Cat-Back DRE 4.0 in Twin Tips
Performance 2021+ Chevrolet Tahoe catback exhaust system features CORSA's Patented Reflective Sound Cancellation® (RSC) No Drone Technology and allows CORSA's acoustic engineers to create an aggressive yet drone free exhaust note, styled specifically to fit the personality of these GM SUVs. CORSA's catback exhaust system is quite simply the best exhaust system for the 2021+ Chevrolet Tahoe and eliminates the stock system's restrictive flow operated valves allowing the exhaust to breathe more freely unlocking horsepower (+20%) and torque (+20%)*, while simultaneously improving fuel economy.
No Drone RSC® Technology available exclusively from CORSA Performance provides the driver with the best-in-class, in-cabin driving experience by eliminating all drone inducing frequencies while providing an aggressive exhaust note under acceleration and a quiet cabin at cruise. Featuring a straight-through muffler design, 3", 304 stainless steel construction, and a variety of tip and exit configurations, Nothing Compares to CORSA's exhaust line-up for the all new GM SUVs. *Results under the curve. Vehicle Torque Limited.
Product Information
3.0" Cat-Back, Dual Rear Exit with Twin 4.0" Tips
- Sound Level: Sport
- Pipe Dia: 3.0" (3.0" Dia. Head Pipe and Muffler to 2.75" Dia. Tail Pipes)
- Type: Cat-Back
- Exit Style: Dual Rear
- Tip Style: Twin
- Tip Size: 4.0"
- Tip Type: Pro-Series (Dual Wall Slash Cut)
Vehicle Fitment
2021-2024 Chevrolet Tahoe 5.3L V8 - 120.9" Wheelbase (Dual Rear Exit from Factory)
2021-2024 GMC Yukon 5.3L V8 - 120.9" Wheelbase (Dual Rear Exit from Factory)
Part Numbers 21127, and 21127BLK are designed to fit vehicles with Dual Rear Exit factory exhausts. If you have a Single Side Exit exhaust from factory the following parts* are required to allow installation of CORSA's DRE exhaust:
- Floor Pan Heat Shield Floor Pan Heat Shield. Shield - SPA Wheel HT. Dual exhaust. Floor Pan Heat Shield. (P# 84688688 QTY: 1)
- Nut. Shield. (Rear) (P# 11548585 QTY: 5)
- Bolt. Transmission. Mount. (P# 11589166 QTY: 1 or 2**)
- Exhaust System Hanger (Rear) (P# 84976677 QTY: 1) [Prev: 23388785]
- Exhaust System Hanger (Front, Rear) (P# 23388784 QTY: 1 or 2**)
- NUT. Bracket. Bumper. (P# 15672093 QTY: 2)
- Bumper Cover (Lower) Bumper Cover. Fascia. Bumper Cover. Dual exhaust. (P# 84751055 QTY: 1)
*The parts listed above are only available through GM Authorized Parts Dealers (or similar retailers). List updated: 7/27/2022 for known vehicle configurations and may change without notice or additional updates.
**We recommend verifying all parts and qty’s needed for your vehicle prior to purchase
Installation Instructions
+20%
Horsepower
+20%
Lb-ft Torque
Limited Lifetime Exhaust Warranty
CORSA branded exhaust systems are backed by a Limited Lifetime warranty for as long as you own your vehicle with proof of purchase.
Related Products
Recommended
Performance results aren’t guaranteed & may vary.
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.
⚠️ WARNING: Cancer and reproductive harm - www.P65warnings.ca.gov
R&D Articles
Nearly 90 years have passed since Chevrolet launched the Suburban. Debuting in 1935 as the Chevrolet Carryall Suburban, the Suburban as it’s known today, has been a constant in the GM SUV line-up. While many things have changed with the Suburban in the past 90 years, one thing remains, the love affair Americans have with the Full-Size SUV.
Today, GM’s line-up of SUVs has many more models than it had 90 years ago and includes the Tahoe, Suburban, Yukon, Yukon XL, Escalade and Escalade ESV, each model carving out a niche in the American full-size SUV segment. Featuring a powerful engine, generous space, and quiet spacious cabins, these SUVs have moved from utilitarian to utopian becoming a staple of the American garage for families everywhere. Equally loved by both men and women, GM’s SUVs are everywhere and with the performance and creature comforts available in the most recent (2021+ model year) GM’s full-size SUVs show no sign of losing popularity.
Featuring a robust engine line-up including both 5.3L and 6.2L V8 options, the full-size SUVs perform the task of hauling family members, boats, campers or trailers with ease. Each engine easily produces enough horsepower and torque to perform admirably whether daily driving, passing slower vehicles on the freeway, transporting the soccer team or hauling a camper to that favorite getaway destination.
To build a well-rounded vehicle suited to a variety of tasks and family transportation, GM equipped the latest Full-Size SUVs with an innovative engine technology “Dynamic Skip-fire” allowing the Full-size SUVs to sip gas, improving fuel economy while cruising by, deactivating cylinders, while instantly re- activating all 8 cylinders when more power is needed. This innovative technology does a fantastic job of boosting MPG’s but creates a complex firing sequence that is a nightmare for an exhaust system to handle.
To resolve the exhaust riddle, GM added valves into the exhaust system and combined them with a heavy packed muffler that effectively quiets the beastly V8 engine. In every driving mode, start-up, acceleration or cruising the stock muffler solution is whisper quiet and inaudible. While the stock system creates a quiet driving experience effectively managing the harsh tones that would otherwise be created by the “Dynamic Skip Fire” engine technology the airflow activated valves and traditional packed muffler technology effectively strangles the V8 engine by creating a restrictive air path.
Enter CORSA’s Catback Performance Exhaust Solution. Development of the current generation GM Full- Size SUV catback exhaust assortment began in late 2020 and commenced in October of 2021. After analyzing numerous driving conditions and designing multiple muffler solutions, CORSA engineers have designed a valve-free system that delivers that same quiet in-cabin experience while also delivering aggressive exhaust notes under acceleration. As the originators of No Drone exhaust technology and after 30 years developing exhaust systems featuring CORSA’s proprietary RSC(R) technology, CORSA’s engineers were able to resolve the exhaust puzzle through precision acoustic tuning of the muffler.
CORSA’s performance exhaust line-up features solutions for each of the V8 equipped GM Full-Size SUVs (Tahoe, Yukon, Yukon Denali, Escalade, Suburban, Yukon XL, Escalade ESV) and their unique exit configurations. Every CORSA Performance exhaust system for the Full-Size SUV family features 3.0”-3.5”, 304 Stainless Steel Construction, A straight-through RSC(R) No Drone muffler, No Valves and comes available in your choice of tip configurations including Polished and Black PVD coating and Stock bezel exit. Each system was Dyno-tested and proven to deliver significant increases in horsepower and torque. (up to 20% below the curve)
“By removing the stock valves located in exhaust system and using our acoustic technology to resolve harsh muffler tones, we were able to greatly enhance the airflow of the exhaust system allowing the SUVs to breath more easily and greatly increasing performance” said CORSA engineer Jason Biter.
CORSA’s current generation Full-Size SUV catback exhaust line-up will launch to market no later than November and quickly be available for purchase on the CORSA Performance website and at your favorite automotive retailers nationwide. To learn more about CORSA Performance products subscribe to the CORSA performance Newsletter or follow us on Facebook and Instagram.
Nearly 90 years have passed since Chevrolet launched the Suburban. Debuting in 1935 as the Chevrolet Carryall Suburban, the Suburban as it’s known today, has been a constant in the GM SUV line-up. While many things have changed with the Suburban in the past 90 years, one thing remains, the love affair Americans have with the Full-Size SUV.
Today, GM’s line-up of SUVs has many more models than it had 90 years ago and includes the Tahoe, Suburban, Yukon, Yukon XL, Escalade and Escalade ESV, each model carving out a niche in the American full-size SUV segment. Featuring a powerful engine, generous space, and quiet spacious cabins, these SUVs have moved from utilitarian to utopian becoming a staple of the American garage for families everywhere. Equally loved by both men and women, GM’s SUVs are everywhere and with the performance and creature comforts available in the most recent (2021+ model year) GM’s full-size SUVs show no sign of losing popularity.
Featuring a robust engine line-up including both 5.3L and 6.2L V8 options, the full-size SUVs perform the task of hauling family members, boats, campers or trailers with ease. Each engine easily produces enough horsepower and torque to perform admirably whether daily driving, passing slower vehicles on the freeway, transporting the soccer team or hauling a camper to that favorite getaway destination.
To build a well-rounded vehicle suited to a variety of tasks and family transportation, GM equipped the latest Full-Size SUVs with an innovative engine technology “Dynamic Skip-fire” allowing the Full-size SUVs to sip gas, improving fuel economy while cruising by, deactivating cylinders, while instantly re- activating all 8 cylinders when more power is needed. This innovative technology does a fantastic job of boosting MPG’s but creates a complex firing sequence that is a nightmare for an exhaust system to handle.
To resolve the exhaust riddle, GM added valves into the exhaust system and combined them with a heavy packed muffler that effectively quiets the beastly V8 engine. In every driving mode, start-up, acceleration or cruising the stock muffler solution is whisper quiet and inaudible. While the stock system creates a quiet driving experience effectively managing the harsh tones that would otherwise be created by the “Dynamic Skip Fire” engine technology the airflow activated valves and traditional packed muffler technology effectively strangles the V8 engine by creating a restrictive air path.
Enter CORSA’s Catback Performance Exhaust Solution. Development of the current generation GM Full- Size SUV catback exhaust assortment began in late 2020 and commenced in October of 2021. After analyzing numerous driving conditions and designing multiple muffler solutions, CORSA engineers have designed a valve-free system that delivers that same quiet in-cabin experience while also delivering aggressive exhaust notes under acceleration. As the originators of No Drone exhaust technology and after 30 years developing exhaust systems featuring CORSA’s proprietary RSC(R) technology, CORSA’s engineers were able to resolve the exhaust puzzle through precision acoustic tuning of the muffler.
CORSA’s performance exhaust line-up features solutions for each of the V8 equipped GM Full-Size SUVs (Tahoe, Yukon, Yukon Denali, Escalade, Suburban, Yukon XL, Escalade ESV) and their unique exit configurations. Every CORSA Performance exhaust system for the Full-Size SUV family features 3.0”-3.5”, 304 Stainless Steel Construction, A straight-through RSC(R) No Drone muffler, No Valves and comes available in your choice of tip configurations including Polished and Black PVD coating and Stock bezel exit. Each system was Dyno-tested and proven to deliver significant increases in horsepower and torque. (up to 20% below the curve)
“By removing the stock valves located in exhaust system and using our acoustic technology to resolve harsh muffler tones, we were able to greatly enhance the airflow of the exhaust system allowing the SUVs to breath more easily and greatly increasing performance” said CORSA engineer Jason Biter.
CORSA’s current generation Full-Size SUV catback exhaust line-up will launch to market no later than November and quickly be available for purchase on the CORSA Performance website and at your favorite automotive retailers nationwide. To learn more about CORSA Performance products subscribe to the CORSA performance Newsletter or follow us on Facebook and Instagram.
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