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JRZ 12 Series Coilovers - BMW 1 series non M E81/E87/E88 (2005-2013) - Meisterschaft Motorsport
JRZ 12 Series Coilovers - BMW 1 series non M E81/E87/E88 (2005-2013) - product detail 1

Porsche

911 GT3

|

991

2012 -

2015

12 series

|

$10,865.00

SKU: MME-JRZ-00311

In Stock

Add JRZ Front Camber plates *

JRZ Camber Plate 95 40 01 16

Add JRZ Front Camber plates *

JRZ Camber Plate 95 40 01 16

Add JRZ Rear Top Mounts*

JRZ Top Mount 95 60 07 37

Full Spring Package*

Add on 25mm Shaft upgrade*

Add on FA3030 Upgrade*

Add on Shaft Low Friction Coating*

Quick Disconnects Rear

Add on Rear Quick Disconnects*

Allows for easier routing of canister into the chassis.

Add JRZ PROlift Nose-Lift Kit*

Total: $10,865.00

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 12 Series triple adjustable motorsport damper for the Porsche 911 GT3 991 (2012-2015). Adds low speed compression bypass to independently adjustable compression and rebound, enabling precise tuning of pitch, roll, and vehicle balance. Features the JRZ 8060 motorsport piston and upgradeable to quad-adjustable with the 50 DA option. Built to order through Meisterschaft Motorsport Engineering, the official U.S. importer of JRZ Suspension. Every set includes expert setup consultation for your Porsche.

WHY THE 12 SERIES FOR THE PORSCHE 911 GT3 991

JRZ 12 Series Coilovers Porsche 911 GT3 991 — triple-adjustable motorsport damping built to order in the Netherlands by JRZ Suspension Engineering. Every unit is hand-assembled and dyno-validated before shipping. Browse all JRZ coilovers.

The JRZ 12 Series Coilovers for the Porsche 911 GT3 991 (2012-2015) deliver motorsport-grade double-adjustable damping in a compact piggyback reservoir design. Built for the 991.1 GT3’s 3.8L naturally aspirated flat-six, the 12 Series provides independent rebound and compression control with a streamlined package that simplifies installation and packaging. Explore the full GT3 991 lineup including the JRZ 11 Series, JRZ RS PRO, and JRZ RS PRO3.

Why Choose JRZ 12 Series Coilovers for Your GT3 991?

  • Double-adjustable damping — Independent rebound and compression adjustment lets you fine-tune body control and wheel compliance separately for optimal balance.
  • Piggyback reservoir — Compact design with the reservoir mounted directly to the damper body — no external hose lines to route, simplifying installation.
  • GT3-specific valving — Tuned from the factory for the 991.1 GT3’s weight, geometry, and high-performance envelope.
  • Premium construction — CNC-machined billet aluminum and hard-anodized components built to withstand sustained track abuse.
  • Clean packaging — The integrated piggyback design fits within the factory wheel wells without requiring additional mounting hardware for remote reservoirs.
Not sure which series?
The 12 Series is JRZ’s flagship — a motorsport-grade triple-adjustable damper at the top of the entire range. The 11 Series offers motorsport-grade double adjustment at a lower price point. For street/track use, the RS PRO3 provides triple adjustment from the RS line.

Hand Built by JRZ in the Netherlands

Every 12 Series damper is hand-assembled at JRZ’s facility in the Netherlands by experienced technicians. Each unit undergoes individual dyno testing and is validated against strict performance tolerances before shipping. This artisan approach ensures that every set of 12 Series coilovers delivers consistent, race-ready performance from the moment they’re installed on your GT3 991.

JRZ 12 Series Coilovers Fitment — Porsche 911 GT3 991

These coilovers are engineered as a direct-fit replacement for the Porsche 911 GT3 991 (2012-2015), specifically the 991.1 generation with its 3.8L naturally aspirated flat-six engine. The system is designed to work with the GT3’s factory suspension mounting points and provides full ride height adjustability through threaded spring perches.

Spec Sheet

VEHICLE Porsche 911 GT3 991 (2012-2015)
SERIES 12 Series
DESIGN Monotube, piggyback reservoir
ADJUSTABILITY Double-adjustable (rebound + compression)
SPRING TYPE Coilover (concentric springs)
QUICK DISCONNECTS Non-inverted / standard
RIDE HEIGHT Adjustable via threaded spring perches
SERVICE Fully rebuildable and revalveable by JRZ
WARRANTY Manufacturer warranty through JRZ

Frequently Asked Questions

What is a piggyback reservoir?
A piggyback reservoir is a secondary fluid chamber mounted directly to the damper body. It increases the total fluid volume for better heat management and more consistent damping performance, without requiring separate mounting points or external hose lines like a remote reservoir system.
How does the 12 Series compare to the 11 Series?
Both offer double-adjustable damping with independent rebound and compression control. The 12 Series uses a piggyback reservoir mounted to the damper body for simpler packaging, while the 11 Series uses a remote reservoir connected by hose lines for greater fluid capacity and heat dissipation during extended sessions.
Is the 12 Series suitable for street use?
Yes. The wide adjustment range allows you to set up a comfortable street configuration. The compact piggyback design also makes it particularly well-suited to street use since there are no external reservoir lines to route or protect.
Does this fit the 991.2 GT3 as well?
This specific kit is designed for the 991.1 GT3 (2012-2015). For the 991.2 GT3 (2017-2019), please see the GT3 991 (2012-2019) fitment which covers both generations. Contact us if you need help identifying the correct kit for your car.
Can the 12 Series be rebuilt or revalved?
Yes. All JRZ dampers are fully serviceable. The 12 Series can be rebuilt, revalved, and re-tuned to suit changes in your setup, tire compound, or driving style. Contact us to arrange service through JRZ.

Need Help Choosing the Right JRZ Setup?

Not sure whether the 12 Series is the right choice for your GT3 991? Our team can help you select the ideal JRZ configuration based on your driving style, vehicle modifications, and performance goals.

Contact Us
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JRZ 12 Series Coilovers - Porsche 911 GT3 991 (2012-2015)

☎ (954) 408-2280

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$10,865.00