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Replace the Ram 1500 HEMI Factory Resonator and Unlock a More Aggressive Exhaust Note
The Corsa COR21037 is a 3-inch resonator delete kit for the 2019-2025 Ram 1500 5.7L HEMI V8 Crew Cab with a 5-foot 7-inch bed. The COR21037 replaces the restrictive factory resonator with a free-flowing stainless pipe section that significantly increases exhaust sound and improves mid-system flow. It pairs with the factory cat-back or a Corsa Sport/Xtreme system, and is a direct bolt-on installation with no cutting required.
Key Features
- 3-inch stainless resonator delete pipe for the Ram 1500 5.7L HEMI
- Removes the factory resonator to increase sound and improve flow
- Compatible with the factory cat-back and Corsa exhaust systems
- Fits 2019-2025 Ram 1500 5.7L Crew Cab with 5ft 7in bed only
- Direct bolt-on to factory flanges, no cutting required
- Limited lifetime warranty from Corsa Performance
- Made in USA
Vehicle Fitment
| Year Range | Make | Model |
|---|---|---|
| 2019-2025 | Ram | Ram 1500 |
Specifications
| Detail | Value |
|---|---|
| MPN | COR21037 |
| Brand | Corsa Performance |
| Part Type | Resonator Delete |
| Pipe Diameter | 3 inches |
| Engine | 5.7L HEMI V8 |
| Cab | Crew Cab |
| Bed Length | 5ft 7in only |
| Material | Stainless Steel |
| Warranty | Limited Lifetime |
| Origin | Made in USA |
| UPC | 847603014595 |
What's Included
- Corsa COR21037 3-inch resonator delete pipe
- All hardware for bolt-on installation
About Corsa Performance
Corsa Performance, founded in 1989 in Berea, Ohio, is the inventor of RSC exhaust technology. All Corsa pipe products are built from stainless steel and backed by a limited lifetime warranty.
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Frequently Asked Questions
What is the COR21037?The Corsa COR21037 is a 3-inch resonator delete kit for the 2019-2025 Ram 1500 5.7L HEMI Crew Cab with a 5-foot 7-inch bed that removes the factory resonator to increase exhaust sound and flow.
What is the difference between COR21037 and COR21044?The COR21037 fits the Ram 1500 Crew Cab with a 5ft 7in bed, while the COR21044 fits the Ram 1500 Crew Cab with a 6ft 4in bed. Verify your bed length before ordering.
Will the COR21037 throw a check engine light?The COR21037 does not remove catalytic converters and should not trigger OBD-II codes in most applications.
Does the COR21037 work with the factory cat-back?Yes. The COR21037 bolts in place of the factory resonator and pairs with the stock cat-back for an improved exhaust sound without replacing the full system.
Is the COR21037 a bolt-on?Yes. The COR21037 bolts directly to the factory flanges at the resonator location with no cutting required.
Does the COR21037 include tips?No. The COR21037 is a resonator delete pipe only. Your existing tips from the cat-back system remain in place.
How much louder will the Ram 1500 be after installing the COR21037?Removing the factory resonator with the COR21037 significantly increases the exhaust note, particularly on acceleration, with a more aggressive HEMI character compared to the factory-muffled tone.
What warranty is included?Corsa Performance provides a limited lifetime warranty on all exhaust pipe products including the COR21037.
Installation Instructions
- Allow the Ram 1500 to cool completely before beginning
- Safely raise and support the vehicle on jack stands or a lift
- Locate and unbolt the factory resonator at both flanges
- Remove the factory resonator section
- Install the COR21037 delete pipe in its place, connecting at both flanges
- Torque all hardware to specification
- Lower the vehicle and start the engine to verify fitment and check for leaks
Prop 65 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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