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BMW E46 Brake Cooling Ducts & Backing Plates

BMW E46 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.
You're currently viewing parts for your (E46) 3-Series 1999-2005. Reset your chassis
For accurate results, specify your model below.
HARD Motorsport FULL Brake Cooling Duct RACE Kit - PAIR - BMW E46 Non-M

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
Part #: E46RACEBRKECOOL2
Price: $427.50 (USD) 
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E46 M3 Turner Motorsport Carbon Fiber Racing Brake Ducts (Pair) 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.
Turner Motorsport
Part #: TBR4660777
Price: $503.10 (USD) 
$559.00 (Sale - Save 10%)
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E46 Turner Motorsport Carbon Fiber Brake Backing Plates (Pair) The Turner Motorsport carbon brake backing plates are made of pure carbon and high temperature resin. Our unique design specifically for the E46 and Z4 (not M) is optimized for 3" hose and allows the air to flow directly to the rotor with no impedance or obstruction, and with a considerably lower weight than competing products. When flow tested compared to a competitors product, the Turner brake ducts flowed twice as much! This greatly reduces the chance of brake fade, boiling the brake fluid, and wear and tear on your brake components. Installation is easy, as it does not require removal of the wheel bearing, by making the backing plate in two parts. The main backing plate and a block off plate that bolts together. Most companies just have a big slot so you can slide the backing plate on, but then it just lets air flow right out the back end. Since we seal off the entire center hub of the rotor, we can maximize cooling airflow to the center of the rotor.

Click here for installation instructions.

These brake cooling backing plates fit the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci M3
2003-2008 E85 E86 BMW Z4 2.5i Z4 3.0i Z4 3.0si
Turner Motorsport
Part #: TBR4663226
Price: $449.96 (USD) 
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HARD Motorsport Brake Cooling Duct ClubSport Kit - BMW E46

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
Part #: E46STBRKECOOL1
Price: $189.00 (USD) 
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HARD Motorsport Brake Duct Inlets and Fog Light Delete -- E46 M3

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
Part #: DUCTINLETS.E46
Price: $152.99 (USD) 
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Turner Motorsport Steering Rack Stop Kit 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

Turner Motorsport
Part #: RACKSTOP
Price: $25.46 (USD) 
$29.95 (Sale - Save 15%)
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Brake Duct Hose Kit - 3 inch with clamps If you are adding fully functional brake ducts to your track or race car, this hose kit is a must. It includes two 4 foot lengths of high-temp duct hose and 4 appropriate sized hose clamps. This is the same duct hose we use in our reknowned racing brake duct kits & our championship winning BMW race cars. This is the best suited and highest quality hose for the job. We wouldn't use anything less -- would you?
Turner Motorsport
Part #: TBR9962303
Price: $76.46 (USD) 
$89.95 (Sale - Save 15%)
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E46 M3 Turner Motorsport Racing Brake Duct Package The Turner Motorsport Racing Brake Duct Kit for the E46 M3 was developed for our Grand-Am and SCCA T2 M3s. Our brake cooling kit is complete - scooping air from the front bumper, through silicone hose, and to the brake rotor hub via backing plates. The front ducts and backing plates are made from 100% carbon fiber for light weight and strength.

These carefully designed spoiler ducts are shaped like an "accumulator box" - scooping the air as it flows around the bumper. Because we make this from carbon fiber we were able to refine the shape and fitment to maximize the airflow, as well as engineer these to be very light weight and use a minimal amount of hose. They can also be custom trimmed to fit a variety of E46 bumpers and configurations. Because this duct was designed for all-out racecars, removal of the factory washer bottle is required.

The hose we use is a high-strength, 3" silicone hose, and strengthened with wire. High-quality hose clamps are included to attach to the bumper ducts and backing plates.

The carbon backing plates are one of our best sellers. These backing plates fit easily onto the back of the rotor without removal of the hub / wheel bearing. The 3" inlet is smooth and unobstructed, allowing as much air into the rotor hub as possible. And since these are made from carbon fiber they are light weight and will not attract/retain heat.

This brake cooling package 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 the M-Technic II, M3 style, or ZHP style front spoiler. These will not work with any other non-M stock bumper.
Turner Motorsport
Part #: TMSBRAKE46
Price: $854.01 (USD) 
$948.90 (Sale - Save 10%)
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HARD Motorsport FULL Brake Cooling Duct RACE Kit -- E46 M3 355MM BBK

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
Part #: E46RACEBRKECOOL3
Price: $450.00 (USD) 
$500.00 (Sale - Save 10%)
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