MSX-1911-BX: WRX STI EJ205 Mantic Stage Series

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MSX-1911-BX STAGES SINGLE PLATE

MAKE	MODEL	ENGINE SIZE	ENGINE ID	SERIES	YEAR
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX STi, 5 Speed, Ver. IV	10/99-7/00
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX STI, 5 Speed, Ver. V	1/99-2/99
Subaru	Forester	2.0 Ltr	EJ255	16V Turbo, 155kW, S11	4/03-5/05
Subaru	Impreza	2.0 Ltr	EJ205	ICT, 160kW, WRX 4WD	8/98-10/00
Subaru	Impreza	2.0 Ltr	EJ20G	16V Turbo, WRX 4WD	2/94-8/98
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX EVO 3, 5 Speed	7/99-9/99
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX EVO 4, 5 Speed	3/00-7/00
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX EVO 5	3/02-7/02
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX EVO 6	4/03-8/03
Subaru	Impreza	2.0 Ltr	EJ205	ICT, 168kW WRX EVO 7, 6 Speed	1/04-9/05
Subaru	Impreza	2.0 Ltr	EJ205	ICT, WRX EVO 8	3/05-12/05
Subaru	Legacy	2.0 Ltr	EJ20R	206kW BD5	6/96-11/98
Subaru	Legacy	2.0 Ltr	EJ208	BE5	12/98-4/03
Subaru	Legacy	2.0 Ltr	EJ20H	192kW BG5	6/96-5/98
Subaru	Legacy	2.0 Ltr	EJ20R	206kW BG5	6/96-5/98
Subaru	Liberty	2.0 Ltr	EJ20	DOHC, B12 B4	1/01-6/03
Subaru	Outback	2.0 Ltr	EJ20	DOHC, B12 B4	1/01-6/03
Subaru	Forester	2.0 Ltr	EJ20J	Turbo, S10	3/98-5/02
Subaru	Forester	2.0 Ltr	EJ20	Turbo, S11	2/02-5/03
Subaru	Legacy	2.0 Ltr	EJ20H	184kW BD5	10/93-7/96
Subaru	Legacy	2.0 Ltr	EJ20H	184kW BG5	10/93-5/96
Subaru	Liberty	2.0 Ltr	EJ20T	Turbo, RS	10/91-12/94
Subaru	Outback	2.0 Ltr	EJ20T	Turbo, RS	10/91-12/94

WRX STI EJ205 wasn’t just fast; it was raw, demanding, and rewarding. It invited drivers to push their limits, learn the nuances of car control, and experience the sheer joy of unadulterated driving. In an era of comfort-oriented sedans, the STI stood out as a defiant champion of driver engagement, a car that demanded respect and rewarded skill. Transcended its performance credentials. It became a cultural icon, a symbol of individuality and rebellion. It found its home in the tuner scene, where enthusiasts pushed the boundaries of performance, creating modified monsters that dominated drag strips and rallycross courses. It appeared in video games and movies, solidifying its image as a pop culture phenomenon.

Today, the WRX STI EJ205 remains a sought-after classic. Prices continue to climb, a testament to its enduring appeal. It’s more than just a car; it’s a gateway to a bygone era of raw performance and driver-focused engineering. It’s a reminder that cars can be more than just transportation; they can be stories, emotions, and experiences.

Clutch Plate Dimensions: 230mm x 24T x 25.2mm

Why Would You Need an Upgraded Clutch?

With any power modifications installation of an upgraded clutch should be considered. You’ll get a performance boost as well as unique, race-inspired shifting that sets your car apart from every other stock version on the road. Performance clutches hold higher torque capacity with better engagement and faster shifting.

The Mantic Stages Clutch System comes in a variety of configurations:

Stage 1 – This kit is developed primarily for the street performance niche, with more torque capability and better heat dispersion than the OE. The organic clutch disc has a high torque capacity cover, SG Iron ER² grooved pressure plate, and SG Iron ER² grooved pressure plate.
Stage 2-Unique combinations of Organic and Cerametallic friction materials combine to produce increased torque capacity, while maintaining excellent drivability. The result is a higher torque capacity than a stage 1 kit, and better drivability than stage 3 kit. The stage 2 kit offers a high torque capacity cover assembly, plus a Spheroidal Graphite (SG Iron) casting with ER² Technology for maximum strength and higher torque capacity. The clutch disc features an organic friction material on the ER² pressure plate side of the disc, combined with cerametallic friction material on the flywheel side.
Stage 3 – Performance Clutch Systems for street use require increased torque capacity while retaining good pedal feel with fine modulation control. These characteristics inevitably increase heat which reduces service life. So the ideal performance clutch system for the street must also have improved heat dissipation. Mantic Stage 3 clutch kits feature a 20% increase (over original equipment) in clamp load for increased torque capacity. Approximately 300% stronger than a standard casting this material (sometimes referred to as an Anti Burst casting) not only increases strength by up to 3 times, it also improves heat dispersion. To insure that the clutch system performs at maximum efficiency and that no unwanted vibration is generated as the cover spins, all Mantic Stage cover assemblies undergo a 2 stage balancing process. The Torque Capacity of a Clutch Plate can be increased by using exotic cerametallic friction material featuring a higher coefficient of friction. However, cerametallic material reduces pedal feel and results in more sudden clutch engagement, reducing street driveability. Mantic Stage 3 Clutch Kits feature cerametallic friction material on both sides of the clutch plate. This results in a strong torque capacity increase compared with Stage 2 – but reduced street driveability. Stage 3 kits include cushioned segments and a sprung hub to maintain a reasonable level of street drivability.
Stage 4 – Capable of handling a lot of torque, this system isn’t intended for street use. The cover assembly has a high torque capacity, an SG Iron pressure plate, and a sprung center cerametallic disc.
Stage 5 – Our most aggressive single disc application, is intended specifically for track and motorsport applications. The stage 5 kit includes a high torque capacity cover assembly with an SG iron burst-proof pressure plate, as well as a rigid hub and undamaged Cerametallic Clutch Disc.

Mantic Stage Series Mantic Stage 1 and Stage 2 clutch kit cover assemblies feature the patented ER² Groove Design, which is a unique pattern CNC machined on the friction face of the pressure plate. This groove has been specifically designed to increase the Mean Effective Radius of the pressure place and assist in heat dissipation. The increase in the Mean Effective Radius of the cover assembly gives a significant increase in the torque capacity.

Performance Clutch Kit

This Kit Includes:

Heavy Duty Cover Assembly

Clutch Plate

Release Bearing

Spigot Bearing

Clutch Alignment Tool

FULL MANTIC STAGE RANGE
BRAND	DETAILS	PART NUMBER	TORQUE CAPACITY
BRAND	DETAILS	PART NUMBER	PEAK	RATED
Mantic Stage 1	ER² Pressure Plate with Organic Disc	MS1-1911-BX	668Nm	534Nm
Mantic Stage 2	Stage 2 ER² Pressure Plate with Organic Disc	MS2-1911-BX	888Nm	710Nm
Mantic Stage 3	Cushioned Sprung Cerametallic Disc	MS3-1911-BX	1124Nm	749Nm
Mantic Stage 4	Sprung Centre Cerametallic Disc	MS4-1911-BX	1124Nm	899Nm
Mantic Stage 5	Cerametallic Disc	MS5-1911-BX	1124Nm	899Nm