Custom Performance and Race Clutches and Flywheels

Our Clutch Kits are made for us by the leader in aftermarket performance clutch with 8 stages ( Stage1, Stage2, Stage2+, Stage3, Stage3+, Stage4, Stage5, Stage5+). Our Clutches have a stock pedal feel with clamping power that is suitable for every application. Stage5 performance clutches have been tested behind manual transmission vehicles with more than 1000hp and for less modified daily driven clutches, check out the Stage 1-3. The clutch kits include a high clamp load, quick release pressure plate, corresponding stage disc, bearings and alignment tool.

Made from high carbon steel or specially treated aircraft aluminum for superior rotational integrity and warp resistance, the billet flywheels feature a hardened replaceable ring gear, high strength racing bolt kit and SFI certification. Our flywheels are manufactured to an industry leading .001 inch. The billet steel units provide desired momentum for street, drag and large turbo applications, but weigh less than stock for greater reliability and noticeable horsepower gains. The aluminum flywheels are lighter for better performance at road race/Time Attack and autocross events.

'New' Custom Torque Converters for Automatic

WRXs, Legacy GT, Forester XT, Baja Turbo

Performance Valve Body for 4EAT and 5EAT Automatic Transmissions

Performance Transmission Rebuild Systems Kit for WRX and Legacy Automatic Transmissions

Performance Transmission Rebuild Systems Kit include: high performance Clutches, Reaction Plates, and Bands; complete sets of Bushings, Washers, and Bearings; high performance Filters; as well as complete sets of seals and gaskets. Also included is a new 4000rpm hi-speed stall converter, which does not require a core charge or exchange.

$3900.00 complete kit w/hi-speed stall converter plus shipping

$800.00 w/o hi-speed stall converter plus shipping

SUBARU 4-SPEED (4EAT) and  5-SPEED (5EAT) PERFORMANCE AUTOMATICS
Forester, Impreza, WRX, Legacy, Outback, Baja and BRZ

Hi-PERFORMANCE AUTOMATIC TRANSMISSION 

for upgrading your Automatic Transmissions to race quality

-Valve bodies are calibrated to provide firm, positive shifts
-Extra forward, reverse and high clutches are installed
-Modified OEM solenoid assembly is installed
-Lube system is redesigned to prevent gear train failure and to increase lube flow
-Large apply area factory servo is installed to provide maximum band holding capacity (where applicable)
-New one-way clutches/sprags are installed
-High volume pump slide spring is installed (where applicable)
-Planetary splines are heat treated to prevent stripping
-Planetary pinion pins are welded to eliminate pin "walk-out"

This is the system to make your track days

and keep your power to the road!!

All Hi Performance Automatic Transmissions are "Built" transmissions. Requires your A/T as core . All shipping costs are extra, with delivery of approximately 8 weeks. You need to be patient.

$6,990.00 plus shipping

Note: We will need your transmission, as a core, to build up.

'Heavy Duty' Transmission Cooler

These 'Heavy Duty' kits feature a heavy duty oil cooler (5/8'' tubes) for high demand transmission oil cooling applications, like performance cars, bracket racing, drag racing, etc. Features 3/8'' barbed fittings. Includes all hardware, hose and fittings.

Features:
-Complete with all hardware, hose and fittings
-BILLET FITTINGS – Billet barbed fittings offer more secure hose connections
-Supplied standard with 1/2'' barb fittings

$250.00

Heavy Duty Transmission Cooler Kit

Impreza AWD Front and Rear, including WRX USA (not STi) R160

Quaife Front A.T.B. Differential Subaru WRX STI 04-07

The Quaife is great for street driving or racing. Racers don't have to put up with locking mechanisms or spools that tear the steering wheel out of their hands when cornering. Because it behaves like an open differential during ordinary driving, street drivers will have trouble telling it's there until pushing the car's limits. The Quaife has been proven in everything from SCCA Rally to Formula 1. It provides autocrossers with such an advantage, it has become "required" equipment for a winning effort.

In cornering, while accelerating out of a turn, the Quaife biases power to the outside wheel, reducing inside-wheel spin. This allows the driver to begin accelerating earlier, exiting the corner at a higher speed.

The Quaife also controls loss of traction when the front wheels are on slippery surfaces such as ice and snow or mud, providing the appropriate biased traction needed to overcome these adverse conditions. The Quaife Differential provides constant and infinitely variable drive. Power is transferred automatically without the use of normal friction pads or plates seen in other limited-slip designs.

The Quaife's unique design offers maximum traction, improves handling and steering, and puts the power where it is needed most. A definite advantage whether on the track or on the street.

The Quaife is extremely strong and durable and since the Quaife is gear operated, it has no plates or clutches that can wear out and need costly replacement.

Impreza AWD Front and Rear, including WRX USA (not STi) R160 $1900.00 each

Quaife Front A.T.B. Differential Subaru WRX STI 04-07 $1700.00

Please be patient, parts delivery is averaging 4-6wks. All parts will be immediately shipped as they become available.

Cusco's performance limited slip differentials can help in a number of ways. During turning, the inner driven wheel experiences less weight and can spin freely preventing you from putting the power down while upsetting the car. An LSD will force the other wheel to spin at the same rate, maximizing traction on power out. During acceleration, a stock LSD can often be too weak to lock both wheels allowing one to spin. Cusco's LSDs will keep both wheels locked firmly in place to keep the car planted while putting down all your power. Cusco offers two different types of LSDs. The Type-RS utilizes springs to absorb some of the initial torque application on the LSD. This makes for a gentler engagement and smoother transitions. Chatter is kept to a minimum and life is extended. Oil change frequency is also reduced. The Type-MZ does not have springs and engages harder than the RS. By switching the number of clutch plates in the unit, the sensitivity can be set. This would be the cost effective choice. 

1 Way - Ideal for FWD and AWD front axles. Activates under acceleration and not on deceleration. When off the throttle, it acts like an open diff allowing for maximum traction in turning and braking. During power on, the LSD engages again ensuring full power is put down.

2 Way - Ideal for RWD cars and AWD rear axles. Ideal for high speed track use and drifting. Activates on both acceleration and deceleration. This is preferable for drifters as the LSD behaves the same regardless of erratic throttle input, and lets you keep the wheels spinning all the way through a corner. Some caution is required as suddenly lifting can unsettle the car.

1.5 Way - Activates under acceleration but not as much during deceleration. Typically the 1.5 way differential is suitable for all types of motorsports driving. With optimized performance during acceleration it carries a lighter lockup on deceleration which is best suited for traditional road racers. Despite the fact that 1.5 way units have slighter lock up on deceleration, many users may still use this cam type for aggressive motorsports such like drifting or low gear auto crossing & gymkhana. FWD vehicles can experience increased stability during braking.


    FITMENT:
    Subaru WRX 2006-2007

    Important Notes:
    Please contact us with any questions regarding the differentials
    If there is a differential setup you want but do not see available below, please contact us
    The settings of the differentials can be changed but ONLY during after dissassembly amidst an overhaul.

Carbonetic Front 1.5way Carbon LSD Subaru WRX 02-06

Carbonetic Rear 1.5way Carbon LSD Subaru WRX 02-06

Carbonetic Front 1.5way Carbon LSD Subaru WRX STI 04-06

Carbonetic Rear 1.5way Carbon LSD Subaru WRX STI 04-06

Carbonetic Rear 2.0way Carbon LSD Subaru WRX STI 04-06

Professional driver seeking the most dependable control when competing in road racing, time attack, drifting competition or a rally event. A vehicle kinetic performance is largely determined by the potential of the selected LSD. CARBONETIC release the Carbon LSD and the Metal LSD. Those LSD have different character. You can choose the best one for your vehicle.

The world famous Carbonetic Carbon LSD provides linear and stable traction during acceleration and deceleration, and regardless of road conditions and driving style, it yields the ideal line preferred by the driver. The carbon LSD's are suitable for street, winding, circuit racing, fun circuit event, drifting, dirt trials, auto-cross, and rallies.

CARBONETIC Carbon LSD Benefits

*More than twice the differential lock strength of metal LSDs

High carbon friction material increases the coefficient of friction
Friction coefficient of metal plate in oil: 0.05 ~ 0.15
Friction coefficient of metal plate in oil: 0.25 ~ 0.35

*Low initial drag resistance with reliable performance - surpasses more than 5 times that of metal LSDs
*Acceleration control range in excess of 10 times that of metal LSDs

Vehicle will remain on track in and out of turns for exacting driving control

*More than 30 times the thermal decomposition resistance of metal LSDs
Promotes increased driving skill - repeated time attacks or under loads of performance cars
*More than 70 times the service life of metal LSDs
*Virtually noiseless performance
*Compatible with automatic transmission vehicles

The Solution for drivers experiencing problems including:

The inability to hit an ideal clipping point around corners
Early desired acceleration early in a corner turn
Under steerding or over steering going into a corner
Short term durabiltiy and the rise in oil temperature
Inconsistent Lap times
LSD noise
Preservation of natural handling for the driver

Replacing Differential: Mechanical - Carbonetic Rear 1.5way Carbon LSD Subaru WRX 02-06

Replacing Differential: Open/Helical Suretrack - Carbonetic Front 1.5way Carbon LSD Subaru WRX 02-06

Replacing Differential: Suretrack - Carbonetic Front 1.5way Carbon LSD Subaru WRX STI 04-06

Replacing Differential: SuretrackSTi Type RA Spec C (Include WRX-Ver.S203) - Carbonetic Rear 1.5way Carbon LSD Subaru WRX STI 04-06

Replacing Differential: Mechanical - Carbonetic Rear 2.0way Carbon LSD Subaru WRX STI 04-06

Carbonetic Front 1.5way Carbon LSD Subaru WRX 02-06 $1600.00

Carbonetic Rear 1.5way Carbon LSD Subaru WRX 02-06 $1600.00

Carbonetic Front 1.5way Carbon LSD Subaru WRX STI 04-06 $1700.00

Carbonetic Rear 1.5way Carbon LSD Subaru WRX STI 04-06 $1600.00

Carbonetic Rear 2.0way Carbon LSD Subaru WRX STI 04-06 $1600.00

Please be patient, parts delivery is averaging 4-6wks. All parts will be immediately shipped as they become available.

Cusco LSD Type RS1, Rear for WRX

Cusco's performance limited slip differentials can help in a number of ways. During turning, the inner driven wheel experiences less weight and can spin freely preventing you from putting the power down while upsetting the car. An LSD will force the other wheel to spin at the same rate, maximizing traction on power out. During acceleration, a stock LSD can often be too weak to lock both wheels allowing one to spin. Cusco's LSDs will keep both wheels locked firmly in place to keep the car planted while putting down all your power. Cusco offers two different types of LSDs. The Type-RS utilizes springs to absorb some of the initial torque application on the LSD. This makes for a gentler engagement and smoother transitions. Chatter is kept to a minimum and life is extended. Oil change frequency is also reduced. The Type-MZ does not have springs and engages harder than the RS. By switching the number of clutch plates in the unit, the sensitivity can be set. This would be the cost effective choice.

1 Way - Ideal for FWD and AWD front axles. Activates under acceleration and not on deceleration. When off the throttle, it acts like an open diff allowing for maximum traction in turning and braking. During power on, the LSD engages again ensuring full power is put down.

2 Way - Ideal for RWD cars and AWD rear axles. Ideal for high speed track use and drifting. Activates on both acceleration and deceleration. This is preferable for drifters as the LSD behaves the same regardless of erratic throttle input, and lets you keep the wheels spinning all the way through a corner. Some caution is required as suddenly lifting can unsettle the car.

1.5 Way - Activates under acceleration but not as much during deceleration. Typically the 1.5 way differential is suitable for all types of motorsports driving. With optimized performance during acceleration it carries a lighter lockup on deceleration which is best suited for traditional road racers. Despite the fact that 1.5 way units have slighter lock up on deceleration, many users may still use this cam type for aggressive motorsports such like drifting or low gear auto crossing & gymkhana. FWD vehicles can experience increased stability during braking.

Important Notes:
Please contact us with any questions regarding the differentials
If there is a differential setup you want but do not see available below, please contact us
The settings of the differentials can be changed but ONLY during after dissassembly amidst an overhaul.

FITMENT:
Subaru WRX 2002-2005

Front Differential

Type-RS - 1.5 Way (1 Way Requires Overhaul) LSD 180 C15

$1,700.00

Type-RS - 1 Way (1.5 Way Requires Overhaul) LSD 180 F

$1,700.00

Rear Differential

Type-RS - 1.5 Way (2 Way Requires Overhaul) LSD 183 L15

$1,700.00

Please be patient, parts delivery is averaging 4-6wks. All parts will be immediately shipped as they become available.

Subaru-WRX axle [R160 or R180] packages

Rear Axles

Description: Rear Axle Upgrade - 900HP. Kit for the WRX Rear conversion is a complete rear system including both axles, hubs and ARP studs. The axles feature 300M bars, chromoly inner CV with spline plug and a bolt-on outer CV with a larger spline. The hubs are made to accommodate the larger spline and are able to accept the factory ABS ring.

Front Axles

Description: 750HP Front Axles. The Front WRX axles are complete axles with chromoly bars, inner and outer CV joints. Please Note: These axles fit the WRX Sedan or Wagon.

Contact Us to discuss application, lead time and pricing.

plus shipping

PLEASE CONTACT US TO DISCUSS THE BEST AXLES FOR YOUR APPLICATION AND AVAILABILITY. We are able to provide custom axles, made to order

Please be patient, parts are made per order and require time to manufacturer (2-4wks.). All parts will be immediately shipped as they become available.

Subaru - STI Front and Rear axle upgrades

Contact Us to discuss application, lead time and pricing.

Rear Axles

Description: STI Rear Axle Bar Upgrade 800HP. The STi is a very stout car from the factory, the inner and outer CV's are made from a Japanese spec material very close to our 4130 chromoly, but the center bars are made from a brittle lower grade material. What we have made is a custom set of aerospace grade center bars that will fit your stock inner and outer CV. The outer CV is made from Billet Chromoly and the internals are also made from the same high grade material, while using the original spline size to fit the stock hubs. 

Description: STI Direct Bolt-In Rear Axles 800HP. The STi is a very stout car from the factory, the outer CV is made from Billet Chromoly and the internals are also made from the same high grade material, while using the original spline size to fit the stock hubs. Also the inner CV tripod design is changed to a full ball and cage design with a larger radius to the spline plug for added strength. 

Description: STI Axle/Hub System 800HP. The axle/hub system set has been designed for 1000WHP. The system comes with both axles and hubs. Starting with the inner CV it has our billet housings that feature a new special material that is actually stronger than 300M for the spline plugs into the diff. The center bar is larger and also made from the same material. The new outer hubs with this system have 2 wheel bolt patterns for both 04 and 05-07 applications and we even added the ABS mount for those of you that are in need of this system for the street. The hubs have a dual bolt pattern so if you have an 04 and want the larger pattern this will take car of it. 2004-2007 STi ONLY

Description: STI Rear Pro-Level Axle/Hub System (1200HP). The Pro-Level Axle/Hub system set has been designed for 1200WHP. The system comes with both axles and hubs. Starting with the inner CV it has our Ball & Cage type CV and new special material that is actually stronger than 300M for the spline plugs into the diff. The center bar is larger than the 1000HP system (36 instead of 32) and also made from the same material. The new outer hubs with this system have 2 wheel bolt patterns for both 04 and 05-07 applications and we even added the ABS mount for those of you that are in need of this system for the street. 

Front Axles

Description: STI Front Axle Bar Upgrade 600HP. The STI is a very stout car, the front inner and outer CV's are very strong but the bars are not, this is a 300M bar upgrade including both bars, boots, clamps and grease. You will need to take you CV off and put them onto these bars. Be very careful when ordering the bar upgrade the axle from year to year are interchangeable but the internal spline (inside the boot) are different. If you're not sure disassemble the axle and give us the spline counts. The price shown is for a kit with (2) axle bars (4) boots and (8) clamps and enough grease for all. 

Description: STi Front Axle Bar Upgrade 600HP. The STi is a very stout car from the factory, the inner and outer CV's are made from a Japanese spec material very close to our 4130 chromoly, but the center bars are made from a brittle lower grade material. What we have made is a custom set of aerospace grade center bars that will fit your stock inner and outer CV. This kit comes with both axle bars, boots, clamps and grease. 

Description: STi Front Axle Bar Upgrade 750HP. 2005-2007 STi (GD) Sedan 750HP Front Axles. The front axles are a direct fit set and feature our aerospace grade axle bars, billet male inner CV and a direct fit outer CV that will fit the factory wheel hubs. 

Contact Us to discuss application, lead time and pricing.

plus shipping

PLEASE CONTACT US TO DISCUSS THE BEST AXLES FOR YOUR APPLICATION AND AVAILABILITY. We are able to provide custom axles, made to order.

Please be patient, parts are made per order and require time to manufacturer (2-4wks.). All parts will be immediately shipped as they become available.

1-Piece Performance Aluminum Driveshaft for

WRX, STi, Forester XT, Legacy GT, BaJa Turbo

Description: Subaru Aluminum Drive Shafts This is our 3" Aluminum single shaft for all the Subaru platforms. These shafts are in some of the fastest Subaru's around the world including Easy Streets WRX and Big Valleys STI. the shafts do have some clearance issues so the floor will need to recontoured a little (some floor braces flattened along with the floor you must have ¾" clearance all the way around the shaft in every area) these shafts are designed for street use but may also be used for racing, so we need to advise you the shaft has a 600WHP max and a critical speed of 150mph. These shafts have had more than both put into them but these are the recommended limits. This shaft is less than half the weight of the factory 2 piece and by eliminating the hanger will remove the lag the factory shaft has when the hanger moves up and down.

You've done the rest of the drive train, now finish it!

$890.00 plus shipping

LEASE CONTACT US TO DISCUSS THE BEST AXLES FOR YOUR APPLICATION AND AVAILABILITY. We are able to provide custom axles, made to order.

Please be patient, parts are made per order and require time to manufacturer (2-4wks.). All parts will be immediately shipped as they become available.

1-Piece Carbon Fiber Driveshaft

02-14 WRX 5-Speed (R160 Rear) and 04-15 STI 6-Speed (R180 Rear)

By removing the factory 2-piece shaft and installing a single shaft the car will feel more responsive due to the lighter weight of the shaft and also the fact that the hanger bearing is not moving up and down during acceleration. Available for most popular motor/trans combinations, if you don’t see yours listed, custom shafts are also available.

Please Note: This driveshaft is rated to 850WHP and a top speed of 180MPH and is not recommended for use above this speed.

$1,450.00 plus shipping

Sequential

Shifting

System

[SSS]

for STi 2004+

6 speed

Subaru STI

6 Speed Transmissions with

LSD & Adjustable DCCD

Please be patient, each transmission is Special Order and takes about 6-8 weeks.

Subaru STI 6-Speed w/ LSD & Adjustable DCCD- 02+ WRX : $8,999.99 plus shipping
The STI 6-Speed transmission was designed to handle the additional torque of a the 280HP STI, as well as the potential race modifications that the car may be subjected too.  Conservative at 280HP, many have subjected this transmission to 500 ft/lbs of torque abuse without suffering failures compared to high failure rate of the WRX 5-speed.  Designed  to address the weaknesses of the standard 5-speed, the 6-speed transmission is split transversely, instead of the longitudinal design of the 5spd. This design greatly strengthens the torsional rigidity of the case itself as well as the shafts and gears.   An added oil pump allows for better lubrication of the gears as compared to the "splash" lubrication system of the 5-speed.


Subaru STI 6-Speed w/o LSD - 02+ WRX : $7,999.99 plus shipping
The STI 6-Speed transmission was designed to handle the additional torque of a the 280HP STI, as well as the potential race modifications that the car may be subjected too.  Conservative at 280HP, many have subjected this transmission to 500 ft/lbs of torque abuse without suffering failures compared to high failure rate of the WRX 5-speed.  Designed  to address the weaknesses of the standard 5-speed, the 6-speed transmission is split transversely, instead of the longitudinal design of the 5spd. This design greatly strengthens the torsional rigidity of the case itself as well as the shafts and gears.   An added oil pump allows for better lubrication of the gears as compared to the "splash" lubrication system of the 5-speed.

Strong Synchro & Dog Gear Sets and Transmission Upgrades