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Breathe Easier, Tow Harder
The CORSA 45553-1 closed box cold air intake replaces the restrictive factory airbox on the 2014-2019 Chevrolet Silverado 1500 5.3L V8 and 2015-2020 GMC Sierra 1500 5.3L V8, increasing airflow by up to 26 percent and adding up to 11 horsepower at the wheel. A cross-linked polyethylene housing seals off engine bay heat while the reusable MaxFlow oiled filter delivers reliable long term filtration.
Key Features
- Closed box design isolates intake air from underhood heat
- Cross-linked polyethylene housing resists cracking and warping
- MaxFlow oiled air filter for maximum airflow and filtration
- Increases airflow by up to 26 percent over the factory intake
- Adds up to 11 horsepower at the wheel on 5.3L V8 applications
- CARB Executive Order D-803-11 legal for sale in all 50 states
- 45553-1 direct-fit design uses factory mounting points
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2014-2019 | Chevrolet | Silverado 1500 | 5.3L V8 |
| 2015-2020 | GMC | Sierra 1500 | 5.3L V8 |
Specifications
| Detail | Value |
|---|---|
| Part Number | 45553-1 |
| Filter Type | MaxFlow Oiled |
| Housing Material | Cross-Linked Polyethylene |
| Airflow Increase | Up to 26 percent |
| Horsepower Gain | Up to 11 HP |
| Emissions Compliance | CARB EO D-803-11 |
| UPC | Not published by manufacturer |
What's Included
- Closed box intake housing
- MaxFlow oiled air filter
- Intake tube and coupling hardware
- Mounting hardware
- Installation instructions
About CORSA Performance
CORSA Performance engineers intake and exhaust systems in Berea, Ohio, focused on durable materials and measurable performance gains. The 45553-1 closed box intake brings that same engineering discipline to half ton Silverado and Sierra trucks.
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Frequently Asked Questions
What is the 45553-1?The CORSA 45553-1 is a closed box cold air intake with a MaxFlow oiled filter for the 2014-2019 Chevrolet Silverado 1500 and 2015-2020 GMC Sierra 1500 5.3L V8.
How much horsepower does the 45553-1 add?The 45553-1 adds up to 11 horsepower at the wheel depending on the specific application and tune.
Is the 45553-1 legal in California?Yes, the 45553-1 carries CARB Executive Order D-803-11 and is legal for sale and use in all 50 states.
Does the 45553-1 fit the 6.2L V8 Silverado?No, the 45553-1 is designed specifically for the 5.3L V8 engine; a separate part number covers the 6.2L V8.
How often should the MaxFlow filter be cleaned?Corsa recommends cleaning the MaxFlow oiled filter every 15,000 to 20,000 miles under normal driving conditions.
Does the closed box design reduce heat soak?Yes, the cross-linked polyethylene housing seals the filter from underhood heat for cooler, denser intake air.
Is installation difficult?Most owners install the 45553-1 in under an hour using basic hand tools and the factory mounting points.
Is the 45553-1 covered by a warranty?Yes, CORSA backs the 45553-1 with a limited lifetime warranty against manufacturing defects.
Installation Instructions
- Allow the engine to cool completely before beginning installation.
- Disconnect the negative battery terminal.
- Remove the factory air intake housing and filter assembly.
- Install the 45553-1 closed box housing at the factory mounting points.
- Insert the MaxFlow oiled filter and secure the intake tube.
- Reconnect all sensors and clamps, then verify a secure seal.
- Reconnect the battery and start the engine to confirm proper operation.
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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