Will the J's Racing Hyper Intercooler fit my FL5 Civic Type R?

Yes. The J's Racing Hyper Intercooler is a direct fit for the 2023 and newer Honda Civic Type R FL5, applicable from chassis FL5-1000001 onward. It mounts in the factory location and works with both the stock turbocharger and big-turbine kit upgrades, so it fits into a build at any stage.

How much cooler does it run than the factory intercooler?

J's Racing's testing shows intake air temperature reductions of approximately 5C in low-temperature conditions and up to 15C in high-temperature conditions under full load. For reference, a stock FL5 sees 50 to 60C intake temperatures above 6,000 rpm in roughly 25C ambient weather.

Why does the FL5 need an intercooler upgrade at all?

The factory core heat-soaks quickly under sustained load, and rising intake temperatures pull timing and power exactly when the K20C1 is working hardest. A higher-capacity core keeps charge temperatures stable so output stays consistent through repeated pulls, canyon runs, and full track sessions.

How is the core constructed?

The all-aluminum core pairs rounded convex tubes with a triple-layer aluminum tube structure for stone resistance. Rectangular fins with internally built fin tubes optimize crossing airflow, and a contoured header plate smooths charge air into the tubes to reduce pressure loss.

What comes in the box?

The kit includes the Hyper Intercooler core assembly, two intercooler gaskets, two piping brackets, and a J's Racing logo stencil plate for custom painting. No additional hardware is required for installation in the factory location.

Is the weight penalty significant?

No. The Hyper Intercooler weighs 5.93 kg against the factory core's 3.12 kg, a modest increase for the added cooling capacity. J's Racing deliberately limited the weight to avoid dulling the FL5's front-end response.

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Description

J’s Racing Hyper Intercooler for FL5 Honda Civic Type R [ICR-L5]

The J’s Racing Hyper Intercooler for the FL5 Honda Civic Type R replaces a factory core that cannot keep pace with the K20C1 turbocharger. J’s Racing measured intake air temperatures of 50 to 60C above 6,000 rpm on a completely stock FL5 in roughly 25C ambient conditions, heat that costs power exactly when you are chasing it. This all-aluminum upgrade drops intake temperatures by approximately 5C in mild conditions and up to 15C under sustained full load, stabilizing high-rpm output whether the car runs the stock turbocharger or a big-turbine kit.

Development and Testing

J’s Racing developed the Hyper Intercooler after logging how quickly the factory FL5 core heat-soaks under sports driving, then validated the design with Dynapack dyno sessions backed by street and circuit testing. The result is a core that holds charge temperatures steady deep into a session instead of fading after the first hard laps.

Construction

The core uses rounded convex tubes that reduce frontal airflow resistance, built in a triple-layer aluminum structure for impact and stone resistance. Rectangular fins with internally built fin tubes are arranged for optimized crossing airflow, and a contoured header plate reduces pressure loss where charge air enters the tubes. At 5.93 kg against the factory core’s 3.12 kg, the added mass over the front axle is kept deliberately low for an upgrade of this capacity.

Features

All-aluminum core with rounded convex tubes that cut frontal airflow resistance
Compatible with the stock turbocharger and big-turbine kit upgrades
Contoured header plate reduces pressure loss at the tube entries
Intake air temperature reductions of approximately 5C to 15C under full load (compared with the factory intercooler)
Rectangular fins with internally built fin tubes arranged for optimized crossing airflow
Triple-layer aluminum tube structure resists stone and debris impact

Specifications

Core Size: 700 x 172 x 100 mm
Material: Aluminum
Weight: 5.93 kg (factory intercooler: 3.12 kg)
Intake Temperature Reduction: approximately 5C to 15C under full load
Turbocharger Compatibility: stock turbocharger and big-turbine kits

What’s Included

Hyper Intercooler core assembly (x1)
Intercooler gaskets (x2)
J’s Racing logo stencil plate (x1)
Piping brackets (x2)

Applications

Honda Civic Type R: FL5 | 2023-present | 2.0L K20C1 Turbo

Notes

Direct replacement for the factory intercooler with no cutting or major modification required
Professional installation recommended
This product may not be legal for sale or use in California or other CARB states. Confirm your local emissions requirements before ordering.
For help pairing the Hyper Intercooler with supporting modifications, contact us

Frequently Asked Questions

Will the J’s Racing Hyper Intercooler fit my FL5 Civic Type R? Yes. The J’s Racing Hyper Intercooler is a direct fit for the 2023 and newer Honda Civic Type R FL5, applicable from chassis FL5-1000001 onward. It mounts in the factory location and works with both the stock turbocharger and big-turbine kit upgrades, so it fits into a build at any stage.
How much cooler does it run than the factory intercooler? J’s Racing’s testing shows intake air temperature reductions of approximately 5C in low-temperature conditions and up to 15C in high-temperature conditions under full load. For reference, a stock FL5 sees 50 to 60C intake temperatures above 6,000 rpm in roughly 25C ambient weather.
Why does the FL5 need an intercooler upgrade at all? The factory core heat-soaks quickly under sustained load, and rising intake temperatures pull timing and power exactly when the K20C1 is working hardest. A higher-capacity core keeps charge temperatures stable so output stays consistent through repeated pulls, canyon runs, and full track sessions.
How is the core constructed? The all-aluminum core pairs rounded convex tubes with a triple-layer aluminum tube structure for stone resistance. Rectangular fins with internally built fin tubes optimize crossing airflow, and a contoured header plate smooths charge air into the tubes to reduce pressure loss.
What comes in the box? The kit includes the Hyper Intercooler core assembly, two intercooler gaskets, two piping brackets, and a J’s Racing logo stencil plate for custom painting. No additional hardware is required for installation in the factory location.
Is the weight penalty significant? No. The Hyper Intercooler weighs 5.93 kg against the factory core’s 3.12 kg, a modest increase for the added cooling capacity. J’s Racing deliberately limited the weight to avoid dulling the FL5’s front-end response.

About J’s Racing

J’s Racing is one of Japan’s most respected Honda tuning houses, developing parts the hard way: on real race tracks in Super Taikyu endurance competition and time attack rather than on paper. From aero and titanium exhausts to suspension and driveline components, every product carries lessons learned from decades of racing Hondas at the limit. Bulletproof Automotive imports J’s Racing parts directly from Japan, bringing authentic, race-proven JDM engineering to enthusiasts in the US and worldwide.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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J’s Racing Hyper Intercooler for FL5 Honda Civic Type R [ICR-L5]

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J’s Racing Hyper Intercooler for FL5 Honda Civic Type R [ICR-L5]

Development and Testing

Construction

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About J’s Racing

Reviews