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Email us
at
sales@boxer4racing.com
Transmission Accessories
Short Shift Kit for STi 2004-up.
GFB STi
Adjustable Short Shifter....THE shortest throw shifter on the market for
your Subaru! Less time changing gears means more
time on the throttle! Working on a different principle to other products on
the market, the GFB Short Shifter can be adjusted to reduce the throw by up
to 40% over standard (more for early models), significantly shorter than
even an STi factory upgrade! Like all GFB
components, the Short Shifter is well engineered and manufactured from the
highest grade materials.

GFB on the other hand, supply a
unique bracket that clamps to the gearbox shift linkage and allows the pivot
point to be raised up to 40mm above standard! On the shortest setting, the
throw is a tiny 30mm per gate! In fact, the LONGEST setting on our shifter
is STILL SHORTER than everyone
else. |
$339.00
$309.99 |
Short
Shift Kit for WRX 2002-up. GFB WRX Adjustable Short Shifter....THE
shortest throw shifter on the market for your Subaru.
Less time changing gears means more time on the throttle! Working on
a different principle to other products on the market, the GFB Short Shifter
can be adjusted to reduce the throw by up to 40% over standard (more for
early models), significantly shorter than even an STi! Like all GFB
components, the Short Shifter is well engineered and manufactured from the
highest grade materials.

GFB on the other hand, supply a unique
bracket that clamps to the gearbox shift linkage and allows the pivot point
to be raised up to 40mm above standard! On the shortest setting, the throw
is a tiny 30mm per gate! In fact, the LONGEST setting on our shifter is
STILL SHORTER than everyone else. |
$249.00
$229.99 |
Stainless Steel Braided Clutch line for WRX and STi. Improve the feel of the
clutch pedal with this stainless steel braided clutch line. It comes with
heavy duty reinforced ends and new hardware for installation.
 |
$39.99 |
KARTBOY
short shifter for STi 6
Speed.
Overall shift throw is decreased by 40%,
providing a noticeable difference and a solid feel.
Constructed of high-tensile steel and low-friction acetal (Delrin®). Installs with simple
mechanic's tools in under 30 minutes.
 |
$149.95 |
KARTBOY shifter bushings for
STi 6 Speed.
 |
$34.99 |
STi
Braided Steel Clutch Hose.
STi clutch hose for all
new age turbo applications provides improved clutch pedal feel and reliable
operation. Hose features a Teflon inner liner with stainless steel over
braid for resistance to expansion under high pressure. Hose has clear
plastic covering and pink strain relief's for a cleaner appearance.
 |
$94.99 |
STi
Severe Duty
Drivetrain Mounts
for WRX and STi.
Recently
homologated for group N rally use. Revised drivetrain mounts are designed
specifically to handle the most abusive environments. Based on WRC
experience with the harsh conditions of the Safari rally and elsewhere.
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Motor
$489.00
Tranny
$108.00 |
Energy
Suspension Shifter bushing for
Impreza WRX. Energy suspension shifter stabilizer bar bushing made of high
performance urethane. One piece design offers better shifter feel over stock
soft rubber design from the factory.

Must be pressed in. |
$9.99 |
KARTBOY
short shifter for Impreza WRX.
Overall shift throw is decreased by 40%,
providing a noticeable difference and a solid feel.
Constructed of high-tensile steel and low-friction acetal (Delrin®). Installs with simple
mechanic's tools in under 30 minutes.
 |
$99.95 |
KARTBOY shifter bushings for the Impreza WRX
 |
$34.99 |
KARTBOY
Short shifter & shifter bushing COMBO
for WRX.
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$119.00 |
Perrin Short shifter for Impreza WRX. The first adjustable short shifter
adapter on the market. The Perrin short shifter retains the original
shifter lever with its anti vibration shaft.

Simple one bolt
adjustment allows you to easily adjust the shifter throw. Easy 15 minute
install. |
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$79.99 |
Short shift lever for WRX.
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What Is A B&M Short Throw Shifter?
A B&M Short Throw Shifter is a direct,
bolt-on, self-contained unit. When you buy a B&M Short Throw
Shifter, along with the complete shifter unit, you get explicit
installation instructions. Installation usually takes about 30
minutes with nothing more than ordinary hand tools.
Why Should I Buy A B&M Short Throw Shifter?
A B&M Short Throw Shifter offers a dramatic
improvement in shifting performance due in large part to reduced
shifter travel, or ‘shift throw’.
Why Should ‘Shift Throw’ Matter To Me?
‘Shift throw’ refers directly to actual
physical travel of the shifter stick - thus affecting the time it
takes to shift from one gear to another (see illustration). In a
performance situation, the additional seconds (or fractions of a
second) a factory stock shifter takes to go from one gear to another
can result in slower elapsed times - or just a sluggish feeling when
driving around town. A B&M Short Throw Shifter eliminates that
sluggish feeling in a daily driver, and gives the racer an extra
edge.
Why Should I Buy A B&M Shifter?
B&M has been in the shifter technology
business for almost 50 years. No one has as much time invested in
the research, development and practical application of
shifter/transmission performance than B&M. If you want a
half-century of experience behind you and your vehicle’s shifter -
buy B&M.
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$159.99 |
STi Pitch
Stop Mount Group
N for Impreza
WRX. Improves stability of the top of the transmission.
 |
$58.00 |
STi Group N Transmission Mount for Impreza WRX
 |
$79.99
each. |
STi Motor
Mounts Group N for WRX
 |
$69.99
each. |
Cusco
Motor
and Transmission Mount Kit for WRX and STi. Heavy duty mount kit with solid
bushings designed to keep engine and transmission movement at a minimum.

Direct replacement for
the stock mounts. No modification necessary. |
$289.00 |
Transmission and Gears
STi Helical
Front LSD.
Used on
certain exclusive STi models (and is now replacing the Suretrac unit for the
Spec C in Japan). This factory helical front LSD features torque sensitive
operation in a progressive and quiet manner. Ideal for road and track use in
moderate power applications.
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$1049.00 |
STi
Heavy Duty Viscous Center LSD 5-speed.
Increases
LSD action of the center differential from 4kgf-m/100rpm stock setting to
20kgf-m/100rpm. This dramatically improves LSD response time reducing wheel
spin and improving reliability on low-grip surfaces. Ideal for rally use.
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$969.00 |
STi
Heavy Duty Viscous Center LSD 6-speed.
Increases LSD action
of the center differential from 4kgf-m/100rpm stock setting to
20kgf-m/100rpm. This dramatically improves LSD response time reducing wheel
spin and improving reliability on low-grip surfaces. Ideal for rally use.
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$999.00 |
AP
Suretrac Rear LSD.
Factory LSD
used on certain STi models. Uses a face cam and follower arrangement to
provide torque sensing. For use with late model R160 differentials.
 |
$919.00 |
STi
Pressure Ring Set for 2004-up STi Rear
Differential.
Increases the pressure
angles of the stock R180 plated LSD (STi models) from 45 degrees to 60
degrees in order to improve throttle sensitivity for competition use. LSD
will operate quicker and more effectively.
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$299.00 |
Quaife
ATB Differential for WRX. The
Quaife
torque biasing differential enables your car to accelerate quicker and
corner faster. How?
By getting the power to the ground!
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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. |
Front
Diff
$1,495
Rear Diff
$1,495 |
STi
Standard
Ratio Gearset
with a
revised dual cone upgraded 1st synchro & hub set
for WRX.
STi standard ratio
gears feature a 5th gear that is identical to the stock WRX for those
wishing to maintain the same highway performance. However, these gears
provide improved reliability of the 5MT through similar hardening and
strengthening features as found on the STi RA set listed
below. Gearset includes all necessary parts for installation.

Professional
installation is recommended. |
$1,599 |
STi
Type RA
Synchromesh Close Ratio
Gear Sets
for 5-Speed WRX.
Factory Ver.6 STi
and STi RA 5-speed close ratio gear sets with
special cryogenic stress relieving treatment with micro
finish coating. Improved strength and
durability over stock WRX components. 1st & 2nd gear width increased by
approx. 1mm vs. standard WRX. Gear tooth root thickness also increased
substantially on most gears as shown in the picture. Excellent for mildly
tuned street and group N competition vehicles.
Note: Gear kits come with
main shaft, gears, locknuts, case gasket, oil seal, custom speedometer gear,
thrust washer, and other special components required to adapt the gear set
to the standard MY02-04 WRX.

STi RA ratios:
3.083 (1st), 2.062 (2nd), 1.545 (3rd), 1.151 (4th), 0.825 (5th) |
$1,599 |
Clutch and Flywheel
Advanced Clutch Technology
XACT
Street Flywheel
for WRX.
ACT
XACT flywheels provide significantly improved engine response, acceleration
and a higher degree of safety than the heavy stock flywheel.

Specs 13.9 pounds.
SFI Certified |
$325.00
$259.99
|
Advanced Clutch Technology
XACT
Street Flywheel
for STi.
ACT
XACT flywheels provide significantly improved engine response, acceleration
and a higher degree of safety than the heavy stock flywheel.

Specs 15 pounds. SFI
Certified |
$423.40
$349.99
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Advanced Clutch Technology
Street
Clutch Kit for STi.
ACT Performance Street Discs are designed
for smooth engagement, quiet operation and improved durability using only
the best organic linings and spring center designs.
Rated 475 ft/lbs
torque capacity with a clamp load increase of 35%

ACT
clutches deliver the maximum holding power by applying a series of sound
engineering advancements to new (not rebuilt)
components which maximizes load and reduces flex. The result is maximum
torque capacity, long life and smooth, fast shifting. ACT is
a premier clutch manufacturer that has more than 300 different
applications and more than 500 performance clutch kits. The company’s
product line features clutches and forged flywheels for the most
popular vehicles in the sport compact car market. ACT is headquartered
in Lancaster, California. |
$914.44
$689.99
|
Advanced Clutch Technology
Street Clutch kit for WRX.
ACT Performance Street Discs are designed
for smooth engagement, quiet operation and improved durability using only
the best organic linings and spring center designs.
Rated 411 ft/lbs
torque capacity with a clamp load increase of 35%
| Torque Capacity: |
|
411
ft .lbs |
| Pressure Increase: |
|
30 % over Stock |
| Weight: |
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15 lbs. |

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$783.37
$589.99
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Advanced Clutch Technology
6 Puck Race Clutch kit for WRX.
| Torque Capacity: |
|
527
ft .lbs |
| Pressure Increase: |
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30 % over Stock |
| Weight: |
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15 lbs. |
Not
recommended for street use due to harsh engagement.
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$751.56
$629.99
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OEM
Original Equipment Manufacture Clutch Kit
for Impreza WRX. Complete original manufacture aftermarket equivalent clutch kit
which is a direct replacement for the
factory unit in your car now.

Includes: Clutch,
Pressure Plate, Release Bearing, Pilot Bearing and Alignment tool. |
$249.00 |
OEM
Original Equipment Manufacture Clutch Kit
for 2004 STi
6-speed. Complete original manufacture aftermarket equivalent clutch kit
which is a direct replacement for the
factory unit in your car now.

Includes: Clutch,
Pressure Plate, Release Bearing, Pilot Bearing and Alignment tool. |
$359.00 |
Single Plate Organic
Clutch Setup
for WRX.

EXEDY Racing clutches with
organic friction materials use only premium friction materials that are
resistant to slippage and burst. Increased clamp loads give the
necessary capacity to handle modified engines.
The driveability
will be like a stock clutch. Pedal efforts will be higher because of the
higher clamp loads. All of our clutch discs have high capacity spring
center dampers to reduce the drive train shock and impact.
Includes:
Clutch, Pressure Plate, Release Bearing, Pilot Bearing and Alignment
tool. |
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$547.00
$499.00
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Single
Plate
Cerametallic
Clutch Setup
for WRX.

EXEDY
cerametallic clutches are designed to handle the abuse of high power
modified engines. Our cerametallic friction material can handle much
more slippage than stock type disc assemblies without slipping and
fading.All
EXEDY
cerametallic clutch discs have spring center dampers to reduce the
impact and shock loads put into the drive train. This protects the
transmission and the rest of the drive line system.
We
offer two types of cerametallic discs -normal thickness and reduced thickness.
The
reduced thickness (thin cerametallic) discs offer greatly reduced
inertia to improve shift efforts, make for faster shifting, and improve
synchro durability. These discs are approximately 1/2 the thickness of a
stock disc. The
normal thickness (thick cerametallic) discs have better heat capacity
and therefore better durability in demanding applications such as all
wheel drive. Even with the normal thickness, our three puck cerametallic
discs still typically have less inertia than a stock disc.
With any cerametallic clutch system,
there will be some compromise of start up driveability as compared to a
stock clutch (chatter on light throttle, low rpm start up). This
characteristic is generally felt to be acceptable in modified
performance cars. Drivers of cerametallic clutches on the street should
be warned not to "ride the clutch" to try to reduce the chatter as this
will greatly increase the wear.
Includes:
Clutch, Pressure Plate, Release Bearing, Pilot Bearing and Alignment
tool. |
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$699.00
$529.00
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Single
Plate
Cerametallic
Clutch Setup
for 2004-up
STi.

EXEDY
cerametallic clutches are designed to handle the abuse of high power
modified engines. Our cerametallic friction material can handle much
more slippage than stock type disc assemblies without slipping and
fading.
All
EXEDY
cerametallic clutch discs have spring center dampers to reduce the
impact and shock loads put into the drive train. This protects the
transmission and the rest of the drive line system.
We
offer two types of cerametallic discs -normal thickness and reduced
thickness. The
reduced thickness (thin cerametallic) discs offer greatly reduced
inertia to improve shift efforts, make for faster shifting, and improve
synchro durability. These discs are approximately 1/2 the thickness of a
stock disc. The
normal thickness (thick cerametallic) discs have better heat capacity
and therefore better durability in demanding applications such as all
wheel drive. Even with the normal thickness, our three puck cerametallic
discs still typically have less inertia than a stock disc.
With any cerametallic clutch system,
there will be some compromise of start up driveability as compared to a
stock clutch (chatter on light throttle, low rpm start up). This
characteristic is generally felt to be acceptable in modified
performance cars. Drivers of cerametallic clutches on the street should
be warned not to "ride the clutch" to try to reduce the chatter as this
will greatly increase the wear.
Includes:
Clutch, Pressure Plate, Release Bearing, Pilot Bearing and Alignment
tool.
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$589.00 |
Hyper Single Clutch
Setup for WRX and STi.

The Hyper Single Clutch is engineered to optimize performance for cars
that are moderately modified, but do not require the clutch capacity of
a multi-plate clutch. Similar to our multi-plate clutches, it has a
forged aluminum cover that is anodized purple. The aluminum cover is
stiffer than a stamped cover and therefore allows a higher lever ratio
to maintain the pedal efforts at a reasonable level.
All Hyper Clutches come with a steel flywheel and a 6-puck cerametallic
facing, spring center damper disc assembly. The disc is generally
smaller and thinner than the OEM disc making for lower inertia and
therefore quicker, easier shifting and less wear and tear on the
transmission synchros. The higher clamp load and cerametallic friction
facings give approximately twice the holding torque of the OEM clutch
and generally higher than other single plate clutches.
As with all cerametallic clutches, the
street driveability may be marginal due to chattering and harsh
engagement characteristics.
An additional feature of the pressure
plate is a series of turbine-like, air flow enhancing vanes that keep
the clutch cooler under extreme operating conditions to improve wear
life.
Includes:
Flywheel, Clutch, Pressure Plate. |
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$1,089.00 |
Multi Plate Clutch
Setup for WRX and STi.

For high-powered applications,
EXEDY
offers twin and triple Multi-Plate Clutches. These are designed for hot
street action as well as drag, road and rally racing.
The twin plate clutches are rated for
above 500hp to 750hp. The triple plate clutches are rated for up to and
over 1000hp (for drag race applications). Twins come as with both spring
damper discs and solid discs. Triples are all solid discs.
All
of our multi-plate clutches come with a lightweight, chrome moly steel
flywheel and the famous purple anodized forged aluminum clutch cover.
Depending on the application, we have both strap drive and lug drive
models. All have T5001 cerametallic friction materials for extreme heat
resistance.
Engine modifications eg. cam-timing-turbo
modifications etc. cause engine pulsation and vibrations. These
vibrations can cause clutch rattle when the clutch pedal is depressed by
movement on the intermediate separator plate in some applications. These
noises will in no way affect the performance of the Exedy Multi Plate
Clutch. This rattle is well accepted in the performance industry where
engine modifications have been carried out.
Includes:
Flywheel, Clutch, Pressure Plate. |
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$1,669.00 |
Light Weight Flywheel
for WRX.

EXEDY Racing Flywheels are
made from solid one-piece billet chrome-moly
steel or chrome moly steel forgings. They are specifically designed to
reduce weight and inertia for better engine response. Most incorporate
special design features to enhance the air flow to improve the cooling
of the clutch. The ring gear teeth are milled onto the flywheel unlike
an aluminum flywheel where the ring gear is pressed onto the flywheel
which has the possibilities of separating from the flywheel. This could
cause the flywheel to explode due to two different expansion
coefficients (aluminum flywheel pressed on steel ring gear).
EXEDY
steel billet and forged steel flywheels have passed engineering tests to
15,000 rpm. They are guaranteed to be explosion proof at the said rpm.
12.7lbs
(5.8 kg) |
|
$399.00 |
UNORTHODOX Ultra Light Aluminum Flywheel for Impreza WRX
and STi
11 .lbs
 |
$439.00 |
Transmission Coolers
Flex-A-Lite
"Thin"
Transmission cooler for WRX
Automatic.
The key to
automatic transmission life is keeping the fluid fresh, clean, and cool.
When fluid temperatures exceed the optimum operating range of 160°F to 200°F
it begins to break down, decreasing the life of the fluid and in turn the
life of the seals, bearings and all moving parts.

Tests have proven that a 20 degree drop in transmission fluid temperature
can double the life of automatic transmission components. Cooler tranny oil
gives more reliable, consistent shifts under racing conditions, and prevents
transmission damage under extreme towing conditions. These coolers provide a
reliable means of cooling your auto transmission. |
$49.99 |
Flex-A-Lite
"Heavy
Duty"
Transmission cooler for
WRX Automatic.
The key to
automatic transmission life is keeping the fluid fresh, clean, and cool.
When fluid temperatures exceed the optimum operating range of 160°F to 200°F
it begins to break down, decreasing the life of the fluid and in turn the
life of the seals, bearings and all moving parts.

Tests have proven that a 20 degree drop in transmission fluid temperature
can double the life of automatic transmission components. Cooler tranny oil
gives more reliable, consistent shifts under racing conditions, and prevents
transmission damage under extreme towing conditions. These coolers provide a
reliable means of cooling your auto transmission. |
$59.99 |
  
* Prices are subject to change.
**TERMS AND
CONDITIONS**
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