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Porsche

Cayman GT4 / GT4RS

|

718

2017 -

2025

11 series

|

$9,370.00

SKU: MME-JRZ-00226

In Stock

Add JRZ Front Camber plates *

JRZ Camber Plate 99 001 991 4

Add JRZ Rear Top Mounts*

JRZ Top Mount 99 001 981 4

Full Spring Package*

Add on 25mm Shaft upgrade*

Add on FA3030 Upgrade*

Add on Shaft Low Friction Coating*

Add JRZ PROlift Nose-Lift Kit*

Total: $9,370.00

Built to Order

2-4 week lead time

JRZ Factory

Hand built in the Netherlands

Rebuildable

Full service & revalve support

Setup Help

We help you dial it in

JRZ 11 Series double adjustable motorsport damper for the Porsche Cayman GT4 / GT4RS 718 (2017-2025). Purpose-built for competition with independent compression and rebound adjustment, blow-off valve technology for unsprung mass control, and the JRZ 8060 motorsport piston for linear damping. Built to order through Meisterschaft Motorsport Engineering, the official U.S. importer of JRZ Suspension. Every set includes expert setup consultation for your Porsche.

The JRZ 11 Series Coilovers Porsche Cayman GT4 GT4RS 718 deliver motorsport-grade double-adjustable damping with a remote reservoir mono-tube design. Built by JRZ Suspension Engineering in the Netherlands, the 11 Series gives GT4 and GT4 RS owners precise rebound control in a package that bolts directly into the 718 chassis. If you need more adjustability, see the 12 Series, RS TWO, or RS PRO.

WHY THE 11 SERIES EXISTS

The 11 Series is built for drivers who want one clear adjustment — rebound damping — without the complexity of multi-way tuning. A single knob controls how the damper extends after compression, letting you fine-tune body control and weight transfer for your driving style.

  • Single-adjustable rebound — one knob dials in body control and transient response without overcomplicating setup
  • Remote reservoir mono-tube — increased oil volume means better heat dissipation and consistent damping over long sessions
  • Meisterschaft-spec valving — tuned specifically for GT4 mass, spring rates, and chassis dynamics
Not sure which series?
The 11 Series is JRZ’s motorsport-grade double-adjustable damper, sitting above the entire RS line in the JRZ hierarchy. For triple-adjustable motorsport control, step up to the 12 Series. For street/track alternatives, the RS PRO and RS PRO3 offer excellent performance from the RS line.

HAND BUILT IN THE NETHERLANDS

Every JRZ 11 Series kit for the Porsche 718 Cayman GT4 is hand-assembled at JRZ’s facility in the Netherlands. Damper bodies are machined from aerospace-grade aluminium, valving is set to Meisterschaft specifications, and each unit is dyno-verified before shipping. Front camber plates (JRZ p/n 99 001 991 4) and rear top mounts (JRZ p/n 99 001 981 4) are included and engineered specifically for the 718 GT4 chassis.

JRZ 11 SERIES COILOVERS PORSCHE CAYMAN GT4 GT4RS 718 FITMENT

Designed as a direct bolt-in for the Porsche 718 Cayman GT4 and GT4 RS (2017–2025). The kit includes front and rear dampers with remote reservoirs, JRZ adjustable camber plates up front, JRZ rear top mounts, and your choice of spring package. Springs are available in Street, Street/Track Hybrid, Track, or Custom rates — chosen based on your driving style, tire compound, and whether the car sees daily use, track days, or dedicated competition. Every kit is a direct bolt-in with no fabrication required.

SPEC SHEET

DAMPER TYPE Single-adjustable mono-tube with remote reservoir
ADJUSTMENTS Rebound — adjustable from the damper body
DESIGN Mono-tube with piggyback remote reservoir for increased oil volume
FITMENT Porsche 718 Cayman GT4 / GT4 RS, 2017–2025
VALVING Meisterschaft spec — optimised for GT4 mass and chassis dynamics
SPRING PACKAGE Street, Street/Track Hybrid, Track, or Custom rates
QUICK DISCONNECTS Front standard
FRONT CAMBER PLATES JRZ adjustable camber plates (p/n 99 001 991 4)
REAR TOP MOUNTS JRZ rear top mounts (p/n 99 001 981 4)
INSTALLATION Direct bolt-in — reservoir mounting required
SERVICE Fully rebuildable and revalveable at Meisterschaft Motorsport
BUILD TIME 2–4 weeks from order, depending on JRZ production schedule

FREQUENTLY ASKED QUESTIONS

What’s the difference between the 11 Series and the 12 Series?
The 11 Series is double-adjustable — you control both rebound and compression. The 12 Series is triple-adjustable, adding independent high-speed and low-speed compression control on top of rebound. Both use a remote reservoir mono-tube design. The 12 Series gives more granular tuning for drivers who want to separate compression behaviour at different shaft speeds.
Is this a bolt-on install?
Yes. The 11 Series is a direct bolt-in replacement for the factory suspension on the 718 Cayman GT4 and GT4 RS. The remote reservoirs require mounting, but no cutting or fabrication is needed.
Do I need springs?
Springs are included with every kit. You choose your spring package at checkout — Street, Street/Track Hybrid, Track, or Custom rates. If you’re unsure which rates suit your use case, contact us and we’ll recommend the right setup.
Can I rebuild or revalve these later?
Yes. Every JRZ damper is fully rebuildable and revalveable. Meisterschaft Motorsport handles all service in-house — whether you need a routine rebuild after a season of track use or want to change the valving to suit a new spring rate or tyre compound.
How long is the lead time?
Typical build time is 2–4 weeks from order, depending on JRZ’s current production schedule. Contact us for the most current lead time estimate.

NEED HELP CHOOSING?

Tell us about your GT4 and how you use it — we’ll recommend the right JRZ platform, spring rates, and options.

JRZ 11 Series Coilovers - Porsche Cayman GT4 / GT4RS 718 (2017-2025)

☎ (954) 408-2280

Contact us for pricing

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$9,370.00