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BMW Brake Cooling Ducts & Backing Plates

Plan on tracking your car? Going to be using real track/race pads? You're going to need brake cooling ducts and hose. Brakes create lots of heat and temps can rise to damaging levels. Excessive heat will burn up caliper seals and dust boots, boil brake fluid, lead to rapid pad wear, inconsistent pedal feel, damage rubber boots on suspension ball joints, and other problems. Racing brake pads are designed to work in very specific temperature ranges so to prevent them from exceeding those temps race teams rely on brake cooling ducts, silicone hose, and bumper ducts.

We have designed and produced advanced brake backing plates that fit behind the wheel bearing hub. The backing plates have an inlet duct that directs air to the center of the hub/rotor. From there, cooling vanes in the rotor draw the air through the rotor to cool it. By keeping the rotor cool it won't transfer as much heat through the pads, caliper, and rest of the braking system. Our kits are designed to fit to the hub without having to remove the hub/bearing.

E46 M3 Turner Motorsport Carbon Fiber Racing Brake Ducts (Pair)
Turner Motorsport - Corporate Logo
T#:2506
Part#: TBR4660777
In Stock
Sale - Save 47% $570.95
$300.00
Sale - Save 47% $570.95
$300.00
Made in the USA These front bumper ducts were developed for our own Grand-Am and SCCA T2 racing efforts. We wanted a duct that would make the most of the M3's frontal area and scoop plenty of air for ducting to the brakes. These ducts replace the factory brake ducts and foglights in the M3 front bumper (or ZHP or M-Technic II bumper). These ducts are made from 100% carbon fiber - we were able to mold them into the shape we wanted to maximize air accumulation and stay light weight and use a minimal amount of hose. Because these were originally designed for all-out racecars, the factory windshield washer bottle on the passenger side is deleted. The outlet for these ducts is 3" - perfect for most silicone hose kits. We also bundle these ducts with the hose and our carbon backing plates for a complete brake cooling package (link to package) .

This item fits the following BMWs:
2001-2006 E46 BMW M3
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi, only with M-Technic II, M3 style, or ZHP style front bumper . These will not fit with any E46 non-M stock bumpers.
ECS Lower Grille With Aluminum Brake Ducts - E39 with M5 Bumper
ECS - Corporate Logo
T#:380382
Part#: 004500ECS02
In Stock
$157.95
$157.95

OEM style fitment for increased air flow to brake ducts. Significantly improved brake cooling potential!

May not work on all aftermarket front bumpers, OE M5 style only.

Turner Motorsport Steering Rack Stop Kit
Turner Motorsport - Corporate Logo
T#:338960
Part#: RACKSTOP
In Stock
Starting at $30.95
Free Shipping on orders $99 and up
Whether it is installing new wider wheels, tires, brake ducts, shocks, or springs, there could be a rubbing issue on the inside of your fender well. Our rack stops will help protect your investment. Rack stops are spacers that install inside of the tie rod and limits the amount of steering travel. You can save the costs of replacing rubbing tires, worn out brake ducts, cut shock reservoir hoses, and broken underside plastic panels. There is also the added benefit of knowing you can turn the steering wheel to full lock and not be worried that the wheels will rub. Our rack stop length is the approximate length that will be removed from the outside tire wall's path. For example, if a 16mm rack stop is used, there will be 16mm more clearance for a brake duct between the fender well and the edge of the tire. Included with this kit: 2 Delrin rack stops, 1 black (driver's side), 1 white (passenger's side), 2 Locking plates (only needed on E36), 4 zip ties, detailed instructions.

Click Here for E30 M3 Installation Instructions.
Click Here for E36 Installation Instructions.

We have Steering Rack Stops to fit the following BMWs:
1987-1991 E30 BMW M3
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3


E82, E9X Turner Motorsport Steering Rack Stop Kit
T#:340473
Part#: TSU9090001
In Stock
Starting at $30.95
Free Shipping on orders $99 and up
Whether it is installing new wider wheels, tires, brake ducts, shocks, or springs, there could be a rubbing issue on the inside of your fender well. Our Rack Stops will help protect your investment. Rack Stops are spacers that install inside of the tie rod and limits the amount of steering travel. You can save the costs of replacing rubbing tires, worn out brake ducts, cut shock reservoir hoses, and broken underside plastic panels. There is also the added benefit of knowing you can turn the steering wheel to full lock and not be worried that the wheels will rub. Our Rack Stop width is the approximate distance that will be removed from the tire's path. For example, if a 20mm rack stop is used, there will be 20mm more clearance for a brake duct between the fender well and the edge of the tire. Included with this kit: 2 Delrin rack stops, 2 zip ties, and detailed instructions.

Fitment notes:
A) not for cars with electric power steering (EPS) or Active Steering
B) not for AWD Xi models

This item fits the following BMWs:
2008-2012 E82 BMW 128i 135i 1M Coupe
2006-2011 E90 BMW 325i 328i 330i 335d 335i M3 - Sedan
2006-2012 E91 BMW 328i - Wagon
2007-2013 E92 BMW 328i 335i 335is M3 - Coupe
2007-2013 E93 BMW 328i 335i M3 - Convertible

HARD Motorsport Brake Cooling Duct ClubSport Kit - BMW E46
HARD Motorsport - Corporate Logo
T#:390235
Part#: E46STBRKECOOL1
In Stock
$225.00
Free Shipping

Keeping cool on the race track is important. Hard Motorsports has you covered with the E46 BMW Brake Cooling Duct Clubsport Kit. Providing directed air flow to your brakes at higher volumes than stock cooling ducks, this kit is made specifically for track applications to help prevent brake fade. This increased flow helps prevent excessive wear and rotor warping, letting your brakes last longer and stronger. Works with all M3's and Non-M E46 BMW's with the M-Tech front bumper.

Allows you to retain your washer fluid bottle and AC, unlike the Race brake kit.

Product Attributes:

  • Directed cooling
  • L & R Molded Inlets
  • 10ft High Temp 3" Flex Hose
  • Mounting Rivets and Stainless Steel Hose Clamps

*Does not include backing plates

This item fits the following BMWs:

E46 BMW M3 and Non-M with the M-Tech Bumper

HARD Motorsport Brake Duct Inlets and Fog Light Delete -- E46 M3
HARD Motorsport - Corporate Logo
T#:390238
Part#: DUCTINLETS.E46
In Stock
$210.00
Free Shipping

These ABS plastic ducts are lightweight and durable and made to fit the E46 M3 front bumper. The rear has a port that allows you to run 3 inch hose to your brakes for extreme cooling needs.

Sold as a pair. Mounting rivets included.

Fits vehicles with the E46 M-Tech front bumper.


HARD Motorsport M3 Cooling Backing Plates -- BMW E36
HARD Motorsport - Corporate Logo
T#:390249
Part#: BACKPLTE.E36.OE
Direct Ship
$189.00
Free Shipping

The Brake Cooling Backing Plates from HARD Motorsport features a design that creates a pocket that forces cool air directly into the rotor from the hat so that built up up doesn't have time to lead to premature brake failure and wear. For any sporty or track driven vehicle, this is an absolute must have! It is made from lightweight solid aluminum and is power-coated for extra protection and appearance. They are installed into OEM mounting locations using stock hardware.

For use with the HARD Motorsport Complete Brake Cooling Duct Kit

Fits the following vehicles:

E36 BMW M3 and all submodels with an OEM M3 rotor conversion

HARD Motorsport Complete Brake Cooling Duct Kit - PAIR - Bmw E36
HARD Motorsport - Corporate Logo
T#:390244
Part#: BRAKECOOL.E36_X
Direct Ship
$249.00
Free Shipping

Keeping cool on the race track is important. Hard Motorsports has you covered with the E36 BMW Brake Cooling Duct Kit. Providing directed air flow to your brakes at higher volumes than stock cooling ducks, this kit is made specifically for track applications to help prevent brake fade. This increased flow helps prevent excessive wear and rotor warping, letting your brakes last longer and stronger. Works with all M3's and Non-M E36 BMW's with the M-Tech front bumper.

Product Attributes:

  • Directed cooling
  • L & R Molded Inlets
  • High Temp 3" Flex Hose
  • Mounting Rivets and Stainless Steel Hose Clamps

Backing plates sold separately.

This item fits the following BMWs:

E36 BMW M3 and Non-M with the M-Tech Bumper


HARD Motorsport E36 M3 Brake Duct Inlets
HARD Motorsport - Corporate Logo
T#:390239
Part#: DUCTINLETS.E36
Direct Ship
$69.00
Free Shipping

These ABS plastic ducts are lightweight and durable and made to fit the E36 M3 front bumper. The rear has a port that allows you to run 3 inch hose to your brakes for extreme cooling needs.

Sold as a pair. Mounting rivets included.

Fits vehicles with the E36 M-Tech front bumper.


HARD Motorsport E46 M3 355mm Big Brake Cooling Backing Plates
HARD Motorsport - Corporate Logo
T#:390248
Part#: BACKPLTE.E46.355
Direct Ship
$229.00
Free Shipping

The Brake Cooling Backing Plates from HARD Motorsport features a design that creates a pocket that forces cool air directly into the rotor from the hat so that built up up doesn't have time to lead to premature brake failure and wear. For any sporty or track driven vehicle, this is an absolute must have! It is made from lightweight solid aluminum and is power-coated for extra protection and appearance. They are installed into OEM mounting locations using stock hardware.

For use with the HARD Motorsport Brake Cooling Duct ClubSport Kit

Fits the following vehicles:

E46 BMW All vehicles with a 355mm Big Brake Kit conversion

HARD Motorsport FULL Brake Cooling Duct RACE Kit - PAIR - BMW E46 Non-M
HARD Motorsport - Corporate Logo
T#:390959
Part#: E46RACEBRKECOOL2
Direct Ship
$515.00
Free Shipping

Keeping cool on the race track is important. Hard Motorsports has you covered with the ultimate E46 BMW Brake Cooling Duct Race Kit. Providing directed air flow to your brakes at a much higher volume than stock cooling ducks, this kit is made specifically for track applications to help prevent brake fade. This increased flow helps prevent excessive wear and rotor warping, letting your brakes last longer and stronger. Works with all Non-M E46 BMW's with the M-Tech front bumper.

Product Attributes:

Directed cooling

Large flexible ducting

Brake dust shield with hose mount

Mounting bracket included

This item fits the following BMWs:

E46 BMW Non-M with the M-Tech Bumper

HARD Motorsport FULL Brake Cooling Duct RACE Kit -- E46 M3 355MM BBK
HARD Motorsport - Corporate Logo
T#:390960
Part#: E46RACEBRKECOOL3
Direct Ship
$559.00
Free Shipping

Keeping cool on the race track is important. Hard Motorsports has you covered with the ultimate E46 BMW Brake Cooling Duct Race Kit. Providing directed air flow to your brakes at a much higher volume than stock cooling ducks, this kit is made specifically for track applications to help prevent brake fade. This increased flow helps prevent excessive wear and rotor warping, letting your brakes last longer and stronger. Works with E46 M3 BMW's with 355mm Big Brake Kit installed.

Product Attributes:

Directed cooling

Large flexible ducting

Brake dust shield with hose mount

Mounting bracket included

This item fits the following BMWs:

E46 BMW M3 with 355mm BBK installed



HARD Motorsport BMW E46 M3 Brake Cooling Backing Plates
HARD Motorsport - Corporate Logo
T#:390247
Part#: BACKPLTE.E46.M3
Direct Ship
$189.00
$189.00

The Brake Cooling Backing Plates from HARD Motorsport features a design that creates a pocket that forces cool air directly into the rotor from the hat so that built up up doesn't have time to lead to premature brake failure and wear. For any sporty or track driven vehicle, this is an absolute must have! It is made from lightweight solid aluminum and is power-coated for extra protection and appearance. They are installed into OEM mounting locations using stock hardware.

For use with the HARD Motorsport Brake Cooling Duct ClubSport Kit

Fits the following vehicles:

E46 BMW M3 and all submodels with an M3 Rotor conversion

HARD Motorsport FULL Brake Cooling Duct RACE Kit - BMW E46 M3
HARD Motorsport - Corporate Logo
T#:390236
Part#: E46RACEBRKECOOL1
Direct Ship
$515.00
Free Shipping