Do the Sport R Coilovers for FK8 also fit the FL5?

Yes. Cusco USA lists part number 3C4 64R CN for both the FK8 and the FL5 Civic Type R, with the same spring rates and mounts. The two generations share the suspension layout this kit bolts to, so one set of Sport R Coilovers for FK8 and FL5 cars covers either car.

What is the difference between the Sport R and the Sport S?

They share the same monotube dampers, 24-step adjusters and pillowball front mounts. The Sport R runs 14 kg/mm front and 16 kg/mm rear springs for UTQG 100 to 200 track tires. The Sport S uses 8 kg/mm front and rear for UTQG 200 to 350 street tires and rides far more softly.

Will the drive modes still change the suspension?

No. The kit replaces the factory adaptive dampers, and Cusco supplies cancellers for their electronic valves, so the drive mode selector no longer alters damping. It is set by hand on the 24-step adjusters instead and stays fixed through a session.

Can the spring rates be changed?

Yes. Cusco lists 14 kg/mm front and 16 kg/mm rear as standard and offers other rates when the kit is ordered. Springs can also be changed later: the fronts are 65 mm ID at 180 mm free length and the rears 65 mm ID at 150 mm, both common coilover sizes.

How is the ride height adjusted?

The damper bodies are threaded along their full length, so height is set by turning the body in its lower mount. Preload and stroke do not change as the car is lowered. An alignment is needed after any change, because camber and toe move with ride height.

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Description

Cusco Sport R Coilovers for FK8 / FL5 Honda Civic Type R

Cusco’s Sport R Coilovers for FK8 / FL5 Honda Civic Type R are the track end of the Cusco Sport range, sprung and valved for sticky UTQG 100 to 200 tires. Each corner gets a 24-step monotube damper on a full-length adjustable body, with 14 kg/mm front and 16 kg/mm rear springs. It is the kit for a Type R that spends weekends on a circuit on track tires; on street radials those rates are more than the tire can use, and the Sport S will ride and grip better.

Design and Performance

A monotube damper keeps its oil and gas charge apart with a floating piston, so it holds its damping over a long session. The case is threaded along its full length, so ride height is set at the lower mount while spring preload and stroke stay put. Pillowball front mounts add camber adjustment, and the shot-peened Cusco Blue Springs resist sag. That makes the Sport R Coilovers for FK8 and FL5 cars easy to set up for each circuit.

Features

Rates chosen for UTQG 100 to 200 track tires
24-step damping through Cusco’s patented needle valve
Cusco Blue Springs, shot-peened for resistance to sag
Camber-adjustable pillowball front upper mounts

Specifications

Cusco part number: 3C4 64R CN
Damper type: Monotube, full-length adjustable
Damping adjustment: 24 steps front and rear
Spring rate, front: 14.0 kg/mm (approx. 784 lb/in)
Spring rate, rear: 16.0 kg/mm (approx. 896 lb/in)
Front spring: 65 mm ID, 180 mm free length
Rear spring: 65 mm ID, 150 mm free length
Front upper mount: Pillowball, camber adjustable
Rear upper mount: Factory part reused
Tires: UTQG 100-200

What’s Included

Front coilover assemblies with pillowball upper mounts (x2)
Rear dampers (x2)
Rear springs (x2)
Factory damper valve cancellers and fitting hardware

Applications

Honda Civic Type R: FK8 | 2017-2021 | 2.0L K20C1 turbo
Honda Civic Type R: FL5 | 2023-present | 2.0L K20C1 turbo

Notes

The factory adaptive damping no longer works once these are fitted; the cancellers for its electronic valves are included
The factory rear upper mounts are reused
A wheel alignment is needed after installation and after any ride height change
For street radials, see the Cusco Sport S Coilovers for FK8 / FL5 Honda Civic Type R

Frequently Asked Questions

Do the Sport R Coilovers for FK8 also fit the FL5? Yes. Cusco USA lists part number 3C4 64R CN for both the FK8 and the FL5 Civic Type R, with the same spring rates and mounts. The two generations share the suspension layout this kit bolts to, so one set of Sport R Coilovers for FK8 and FL5 cars covers either car.
What is the difference between the Sport R and the Sport S? They share the same monotube dampers, 24-step adjusters and pillowball front mounts. The Sport R runs 14 kg/mm front and 16 kg/mm rear springs for UTQG 100 to 200 track tires. The Sport S uses 8 kg/mm front and rear for UTQG 200 to 350 street tires and rides far more softly.
Will the drive modes still change the suspension? No. The kit replaces the factory adaptive dampers, and Cusco supplies cancellers for their electronic valves, so the drive mode selector no longer alters damping. It is set by hand on the 24-step adjusters instead and stays fixed through a session.
Can the spring rates be changed? Yes. Cusco lists 14 kg/mm front and 16 kg/mm rear as standard and offers other rates when the kit is ordered. Springs can also be changed later: the fronts are 65 mm ID at 180 mm free length and the rears 65 mm ID at 150 mm, both common coilover sizes.
How is the ride height adjusted? The damper bodies are threaded along their full length, so height is set by turning the body in its lower mount. Preload and stroke do not change as the car is lowered. An alignment is needed after any change, because camber and toe move with ride height.

About CUSCO

CUSCO is the brand of Carrosser Co., Ltd., founded in December 1977 and based in Takasaki, Gunma Prefecture, Japan. Carrosser designs and builds coilovers, limited-slip differentials, clutches, roll cages and chassis parts, sells its steel cages under the Safety 21 name, and competes in every All Japan Championship category from circuit racing to rally and gymkhana. CUSCO USA, a division of Carrosser, is based in Huntington Beach, California.

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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Cusco Sport R Coilovers for FK8 / FL5 Honda Civic Type R [3C4 64R CN]

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Cusco Sport R Coilovers for FK8 / FL5 Honda Civic Type R

Design and Performance

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About CUSCO

Reviews