COMPATIBLE: (1.5L)
2016 - 2021 HONDA CIVIC
Fits all 2016-2021 Honda Civic 1.5T
Fits all variant models including Si, CVT, 6MT, RHD, International Models, Etc.
50 State Legal CARB Approved: EO D-878
INSTALLATION:
PDF - 2016-2021 Honda Civic 1.5T Intercooler Install Instructions
Important Notes:
- NO ECU CALIBRATION REQUIRED
- THERE ARE (2) TOTAL O-RINGS IN THE FACTORY CHARGE PIPE SYSTEM. O-RINGS MAY BE SUBJECT TO REPLACEMENT IF TORN, DRY-ROTTED, DISFORMED OR HIGH MILEAGE
- REMOVAL OF LOWER FACTORY INTAKE AIR BOX DAMPER IS RECOMMENDED FOR OPTIMAL FITMENT
- FITS FACTORY CHARGE PIPING OR PAIR WITH OUR CHARGE PIPE UPGRADE KIT FOR OPTIMAL PERFORMANCE
- PLEASE CALL OR EMAIL IF PAIRING WTH V1 CHARGE PIPING
- OEM Honda Part Number 19710-5AA-A01
Technical Notes:
It’s no secret that Honda’s 1.5L turbo Civic is extremely susceptible to heat-soak, especially when retaining the factory intercooler. Excessive heat-soak increases the risk of detonation and causes major power-loss due to high charge air and cylinder temperatures. These issues become even more prevalent with spirited driving and/or increased power outputs. The PRL Motorsports intercooler upgrade decreases charge air temperatures while increasing potential airflow with its dense 550+ horsepower rated (though we have pushed 600+) 25.5x4x6.3” bar-and-plate bar-and-plate core and machined billet aluminum end tanks! This intercooler utilizes factory mounting spots with our embossed end tanks. Kits will come with all hardware needed for a seamless install.
Performance Gains:
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9 horsepower & 3 ft/lb torque gains by simply bolting on
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50+ F degree drop in post charge air temperature at peak
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Average of 36 F degree drop in post charge air temperature
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Increased efficiency & consistency in power delivery
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Increased engine safety
Kit Includes:
- (1) Intercooler Assembly w/ Billet End Tanks
- (2) Air Guides w/ Stainless Hardware
- (2) Billet Aluminum Factory Charge Pipe Adapters
- (1) Cardboard Stencil w/ “PRL” Logo
- (2) PRL Factory Style Replacement O-Rings
Data:
TESTING DATA BLOG POST
DESIGN BLOG POST
INTERCOOLER CORE DESIGN BLOG POST
Engineering the Future
With years of dedication and countless hours of development, PRL Motorsports has grown from a small team of three enthusiasts to a thriving company with over 25 highly skilled professionals. In 2021, we moved into our current 25,000 sq/ft facility in Export, Pennsylvania, designed to house state-of-the-art manufacturing and engineering capabilities.
Our facility includes:
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Full fabrication and welding shop
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CNC machining department equipped with:
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Automated cutting stations
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Dual-spindle CNC lathe
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3-axis and 5-axis milling centers
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High-production horizontal milling with pallet changers
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Automated robotic loading systems
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Pallet-changing machines and robotic arms for increased efficiency
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24-hour production capacity to meet growing market demand
This advanced manufacturing setup allows us to create high-quality performance parts with precision and efficiency, maintaining the highest standards for fitment, reliability, and ease of installation.
WARRANTY:

