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Wake Up Your Tahoe with a Deeper Exhaust Voice
The CORSA 21125BLK is a Sport level 3.0 inch cat-back exhaust built specifically for the 2021 to 2022 Chevrolet Tahoe 5.3L. Using CORSA's patented Reflective Sound Cancellation technology, the 21125BLK removes the flat, droning tone of the factory exhaust and replaces it with a deep, aggressive rumble that stays quiet at cruise and opens up under throttle. Twin 4.0 inch Black PVD Pro-Series tips finish the look with a single side exit stance.
Key Features
- 3.0 inch mandrel bent 304 stainless steel cat-back system
- Reflective Sound Cancellation (RSC) technology for a drone free cabin
- Twin 4.0 inch Black PVD Pro-Series tips, dual wall slash cut
- Up to 20 percent increase in horsepower and torque below 5,000 RPM
- Computerized, mandrel bent, straight through muffler design
- Direct bolt on installation using factory hanger locations
- Limited lifetime warranty to the original purchaser
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2021-2022 | Chevrolet | Tahoe | LS |
| 2021-2022 | Chevrolet | Tahoe | LT |
| 2021-2022 | Chevrolet | Tahoe | PPV |
| 2021-2022 | Chevrolet | Tahoe | Premier |
| 2021-2022 | Chevrolet | Tahoe | SSV |
| 2021-2022 | Chevrolet | Tahoe | Z71 |
Specifications
| Detail | Value |
|---|---|
| Part Number | 21125BLK |
| Pipe Diameter | 3.0 inch |
| Tip Size | Twin 4.0 inch |
| Tip Finish | Black PVD Pro-Series |
| Material | 304 Stainless Steel |
| Sound Level | Sport |
| Exit Style | Single Side Exit |
| Horsepower Gain | Up to 20 percent below 5,000 RPM |
| Torque Gain | Up to 20 percent below 5,000 RPM |
| UPC | Not published by manufacturer |
What's Included
- 1x 21125BLK cat-back exhaust system with mufflers and pipes
- Twin 4.0 inch Black PVD Pro-Series tips
- All necessary clamps and hardware
- Installation instructions
About CORSA Performance
CORSA Performance engineers every exhaust system to deliver real power gains without sacrificing comfort. The 21125BLK reflects that philosophy, combining patented Reflective Sound Cancellation technology with 304 stainless steel construction so Tahoe owners get an aggressive tone on demand and a quiet cabin the rest of the time.
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Frequently Asked Questions
What is the 21125BLK?The 21125BLK is a CORSA Sport level 3.0 inch cat-back exhaust system for the 2021-2022 Chevrolet Tahoe 5.3L, featuring twin 4.0 inch Black PVD Pro-Series tips in a single side exit configuration.
Does the 21125BLK fit all Tahoe trims?Yes, it fits LS, LT, PPV, Premier, SSV, and Z71 trims of the 2021-2022 Tahoe 5.3L.
How loud is the 21125BLK compared to stock?It is tuned to a Sport sound level, meaning it is noticeably deeper and more aggressive than stock but remains comfortable at highway cruise thanks to RSC technology.
Will the 21125BLK increase horsepower?Yes, CORSA states up to a 20 percent increase in horsepower and torque below 5,000 RPM compared to the factory exhaust.
What finish do the tips come in?The 21125BLK comes with Black PVD Pro-Series tips for a deep black finish that resists heat discoloration.
Is professional installation required for the 21125BLK?No, it is designed as a direct bolt on system using factory hanger locations, though professional installation is recommended if you are not comfortable with exhaust work.
Does the 21125BLK come with a warranty?Yes, CORSA backs the 21125BLK with a limited lifetime warranty to the original purchaser.
Can I install the 21125BLK on a vehicle with a factory dual rear exit exhaust?No, the 21125BLK is designed for Tahoe models with a single side exit configuration; use the 21127 or 21127BLK for dual rear exit models.
Installation Instructions
- Raise and safely support the vehicle on a lift or jack stands.
- Remove the factory exhaust system starting at the muffler hangers and working forward.
- Disconnect factory hangers and lower the stock exhaust for removal.
- Test fit the CORSA 21125BLK 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 Black PVD tips evenly with the rear bumper opening.
- 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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