MSX-1911-BX: WRX STi, 5 Speed Mantic Clutch 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 stands for World Rally Experimental, and STI means Subaru Tecnica International. WRX STI represents performance, efficiency, and reliability in a compact package, that has great bang for your buck. WRX STI is a sports car with unique features: such as Active Torque Vectoring that lets you set how much power you want to front or rear wheels, a manageable engine for day-to-day driving, the performance characteristics are a bit more daily driver-oriented, but it can be used for racing/drifting purposes. It has a fantastic chassis that provides a lot of driver feedback. The ergonomics on the inside are probably its biggest flaw. Subaru Symmetrical All-Wheel Drive keeps you balanced on the road by evenly distributing power to ensure maximum traction. When driving in the snow, this functionality comes in handy since it lets your wheels obtain more grip to get you where you need to go.

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

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 – A combination of organic and cerametallic friction components boost torque capacity while maintaining excellent driveability. As a result, the torque capacity is greater than that of a stage 1 kit, and the drivability is better to that of a stage 3 kit. The stage 2 package includes a high torque capacity cover assembly as well as a Spheroidal Graphite (SG Iron) casting with ER². Maximum strength and torque capabilities are provided by this technology. Organic friction material is used on the ER² pressure plate side of the clutch disc, whereas cerametallic friction material is used 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:

Clutch Disc

High Torque Capacity Cover

Spigot Bearing

Aligning 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