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More Muscle for the 6.2L Tahoe and Yukon Denali
The CORSA 21129 is a Sport level 3.5 inch cat-back exhaust built for 2021 to 2022 Chevrolet Tahoe, GMC Yukon, and GMC Yukon Denali trucks powered by the 6.2L V8 with a factory dual rear exit exhaust. A larger 3.5 inch head pipe capitalizes on the bigger engine's airflow needs, while Reflective Sound Cancellation technology keeps the cabin drone free at cruise. Twin 4.0 inch Polished Pro-Series tips complete the dual exit look.
Key Features
- 3.5 inch mandrel bent 304 stainless steel cat-back system
- Reflective Sound Cancellation (RSC) no drone technology
- Twin 4.0 inch Polished Pro-Series tips, dual wall slash cut
- Up to 20 percent increase in horsepower and torque under 5,000 RPM
- Sized specifically for the higher flow 6.2L V8
- Designed for factory dual rear exit exhaust configurations
- Limited lifetime warranty to the original purchaser
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2021-2022 | Chevrolet | Tahoe | High Country |
| 2021-2022 | GMC | Yukon | Denali |
Specifications
| Detail | Value |
|---|---|
| Part Number | 21129 |
| Pipe Diameter | 3.5 inch head pipe and muffler, 2.75 inch tail pipes |
| Tip Size | Twin 4.0 inch |
| Tip Finish | Polished Pro-Series |
| Material | 304 Stainless Steel |
| Sound Level | Sport |
| Exit Style | Dual Rear Exit |
| Horsepower Gain | Up to 20 percent under 5,000 RPM |
| Torque Gain | Up to 20 percent under 5,000 RPM |
| UPC | Not published by manufacturer |
What's Included
- 1x 21129 cat-back exhaust system with mufflers and pipes
- Twin 4.0 inch Polished Pro-Series tips
- All necessary clamps and hardware
- Installation instructions
About CORSA Performance
CORSA Performance sizes each cat-back system to match the engine it serves. The 21129 uses a larger 3.5 inch head pipe built specifically around the 6.2L V8's higher flow needs, pairing that capacity with Reflective Sound Cancellation so Tahoe and Yukon Denali owners get maximum output without a harsh cabin drone.
Related Parts on Our Site
- Corsa 21-22 Chevrolet Tahoe/GMC Yukon 4DR 6.2L 4WD Dual Rear 3.5/2.75in Sport Cat-Back DW 4in BLK Tips
- Corsa 21-22 Suburban/GMC Yukon XL 6.2L 4WD Dual Rear 3.5/2.75in Sport Cat-Back DW 4in Pol Tips
- Corsa Single Universal 3.0in Inlet / 4.5in Outlet Black PVD Pro-Series Tip Kit
Frequently Asked Questions
What is the 21129?The 21129 is a CORSA Sport level 3.5 inch cat-back exhaust for 2021-2022 Chevrolet Tahoe and GMC Yukon Denali 6.2L trucks with a factory dual rear exit exhaust, featuring twin 4.0 inch Polished Pro-Series tips.
Why is the pipe diameter larger than the 21127?The 21129 is built for the higher flowing 6.2L V8, which benefits from the larger 3.5 inch head pipe compared to the 3.0 inch pipe used on 5.3L applications.
Does the 21129 fit the standard 5.3L Tahoe?No, the 21129 is engineered specifically for 6.2L equipped Tahoe High Country and Yukon Denali models; use the 21127 for 5.3L trucks.
How much horsepower does the 21129 add?CORSA rates the 21129 for up to a 20 percent increase in horsepower and torque under 5,000 RPM versus the stock exhaust.
What finish are the exhaust tips?The 21129 comes with Twin 4.0 inch Polished Pro-Series tips for a bright chrome like appearance.
Does the 21129 require a factory dual rear exit exhaust?Yes, it is designed to match a factory dual rear exit configuration.
Is the 21129 covered by a warranty?Yes, it carries a limited lifetime warranty to the original purchaser.
Can I get the 21129 with black tips instead?Yes, the 21129BLK is the same system with Black PVD Pro-Series tips instead of polished.
Installation Instructions
- Raise and safely support the vehicle on a lift or jack stands.
- Remove the factory dual rear exit exhaust starting at the rearmost hangers.
- Disconnect factory hangers and lower the stock exhaust for removal.
- Test fit the CORSA 21129 system starting at the front connection point.
- Secure all factory hanger points with the CORSA mufflers and pipes.
- Install the provided clamps at each connection joint without fully tightening.
- Align the twin 4.0 inch Polished tips evenly with the rear bumper openings.
- Tighten all clamps to specification once alignment is confirmed.
- Start the vehicle and inspect the full system for exhaust leaks.
WARNING: This product can expose you to chemicals including nickel compounds, which are known to the State of California to cause cancer, and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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