SKU: 75414221039

J's Racing Hyper Intercooler - 23+ Civic Type R (FL5)

Sale price$1209.60 Regular price$1344.00
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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

J's Racing Hyper Intercooler - 23+ Civic Type R (FL5)A must have item for FL5 users! High performance intercooler is finally here! The performance of the original FL5 intercooler cannot keep up with the amount of heat generated, so even in full normal conditions, the intake air temperature reaches 50 60 degrees C in the high rotation range of 6000 RPM or higher. (At an outside temperature of approximately 25 degrees C as the main cause). Due to the high output of the turbo, the amount of heat generated

A must-have item for FL5 users! High-performance intercooler is finally here!

The performance of the original FL5 intercooler cannot keep up with the amount of heat generated, so even in full normal conditions, the intake air temperature reaches 50-60 degrees C in the high rotation range of 6000 RPM or higher. (At an outside temperature of approximately 25 degrees C as the main cause).

  • Due to the high output of the turbo, the amount of heat generated by the turbine etc. is extremely large.
  • Insufficient capacity of the cooler core and problems with the fins.
  • Difficulty in airflow when driving.
  • Difficult flow of heat in the piping and intercooler

In addition to engine cooling measures such as the thermostat, sports coolant, and aero parts, increasing the intercooler capacity = increasing the heat exchange rate and improving the turbine flow speed will result in stable output in the high rotation range and a significant increase in output. It has become possible to realize this.

J's Racing started joint development with DRL (Daiwa Radiator Manufacturing Co., Ltd.) to develop intercoolers. In addition to the output test using Dynapack, they also conducted actual driving tests on circuits and streets, and adjusted the fitting, resulting in a product that can be replaced with a genuine product without any major modification.

As a result, they have achieved a cooling effect of approximately 5 degrees C or more at the minimum intake air temperature and approximately 15 degrees C or more at the maximum intake air temperature under full normal conditions!

In addition, by making it lightweight, they minimize the impact on overall driving performance by avoiding as much weight as possible in the front overhang, where the intercooler is mounted.

Compatible with genuine turbines as well as big turbine kit replacement cars.

Features:
- The power graph in the image was measured with an intercooler and FL5 HYPER-ECU option for intercooler (JS-N-L5-ICR).
- A stencil plate with the J's Racing logo is included. If you would like the J's Racing logo on the front, please spray paint using a stencil plate.
- Two intercooler gaskets are included.
- Intercooler Core Size: H 700mm x W 172mm x T 100mm

Detailed Interior Design To Support Instant Acceleration
Optimum heat exchange for this reason, even the inside has been carefully designed. The complex structure with fins built into the tube, rather than the typical multi-hole structure, is the result of DRL's (Daiwa Radiator Manufacturing Co., Ltd.) advanced technological capabilities. Reduces unnecessary air resistance and draws in smooth air flow.

Rectangular Fin With Increased Core Structure And Strength
The outer fin and the tube containing the inner fin are arranged in an optimal balance, and the structure is such that air crosses vertically and passes through them by crossing each other's directions. A new shape derived from various simulations. The outer fin has a highly strong design by folding the edges and creating a double structure on the surface that is exposed to the wind. They have reduced the weight of the fins without making them unnecessarily thick.

Rounded Convex Tube Shape
In order to eliminate unnecessary air resistance and make it easier to attract running wind into the core, running wind is efficiently sucked into the outer fin from a convex tube with rounded corners. In addition, the convex part of the tube has a triple-layer structure made of aluminum material, which reduces fatal damage caused by tire debris and flying stones. Since the intercooler is easily damaged, we have taken measures to maintain high performance.

Uniquely Shaped Plate
The intake side of the header plate is designed with a plump and gentle curve in order to reduce the resistance to the maximum amount of air flowing into the core from the inlet pipe. Minimizes internal pressure loss.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 75414221039

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Ruby
Birmingham, US
★★★★★ 5
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If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
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Reviewed in the United States on December 21, 2024
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Make it Do!
Draper, US
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
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Reviewed in the United States on February 11, 2026
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SeanCeltiad
Birmingham, US
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025
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Larry
Omaha, US
★★★★★ 5
Quality,warmth and fit
Color: Royal Blue, Size: Small
Really top quality. This is my 4th purchase of these Really great sweaters.
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Reviewed in the United States on February 12, 2026
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Robert III
Belleville, US
★★★★★ 5
Nice Sweater
Color: 01-black, Size: Large
This is a very nice sweater. It’s reasonably thick and warm. Looks nice. I like it.
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Reviewed in the United States on January 18, 2026

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