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BMW Brake Cooling Ducts & Backing Plates for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

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.

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Genuine BMW Rear Brake Dust Shield - Right - Z4 S54 3.2L, E46 S54 3.2...

T#:62166

Part#: 34212228966

Ships in 1-2 days

4% off MSRP $ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 81.99 USD

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4% off MSRP

$ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 81.99 USD

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Genuine BMW Protection Plate Right
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Genuine BMW Brake Dust Shield - Right

T#:61768

Part#: 34116750130

Ships in 1-2 days

3% off MSRP $ 178.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 172.99 USD

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Qty

3% off MSRP

$ 178.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 172.99 USD

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Genuine BMW Protection Plate Right -
This item fits the following BMW Chassis:
E46,E85

Genuine BMW Rear Brake Dust Shield - Left - E46 M3, Z4 M

T#:62165

Part#: 34212228965

Ships in 3 Business Days

4% off MSRP $ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 81.99 USD

Add to Wish List

Qty

4% off MSRP

$ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 81.99 USD

Add to Wish List

Genuine BMW Protection Plate Left
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

HARD Motorsport Brake Duct Inlets and Fog Light Delete -- E46 M3 ...

T#:390238

Part#: DUCTINLETS.E46

In Stock

$ 199.00 USD

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$ 199.00 USD

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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.

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AAF Brake Cooling Duct Kit - E46 Non-M

For Non-M Models

T#:7608846

Part#: 11674

Ships in 4 Business Days

$ 450.00 USD

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$ 450.00 USD

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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF is proud to introduce their redesigned AAF E46 (non-M) Brake Cooling Duct Kit! Features: Extremely Light Weight – Less than 4 lbs in total! Ultra-High Airflow Inlets Tight Turning Radius Easy and Quick To Install Inexpensive to Buy and Maintain Durable for Racing Conditions Designed strong and lightweight these brake duct inlets include a massive 4' inlet. Ultimately this aids in providing higher airspeed and pressure to the brake rotor and thus better brake cooling. Inlets are manufactured by AAF in-house with a 3D printer to provide a strong and inexpensive part. Brake duct tubes included in this kit are made from lightweight and strong ABS plastic. Shaped for optimized airflow, these tubes also provide the ability for a tight turning radius even with large racing tires. Per AAF: for a SPEC E46 with the spec 255 Toyo tire, you can turn 1.5 turns from straight without hitting the tubes, which is more than enough for driving around the paddock. The tubes taper down to a 3' flex hose, to remain legal for SE46. Included in the kit are AAF's Brake Backing Plates as well. Kit Contents: Left and Right AAF 3D Printed Massive 4' Inlets Left and Right 4' to 3' Molded Tubes Two 13' Sections of Flex Hose Left and Right AAF Backing Plates All Attaching Hardware and Hose Clamps

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HARD Motorsport Brake Cooling Low-Profile Duct Kit - E46 M3

T#:599638

Part#: E46BRKDUCTONLY-X

Ships on Oct 13, 2026

$ 279.00 USD

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$ 279.00 USD

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Overheating your brakes can end an entire weekend at the track and is the most common reason for premature brake failure and wear. Hi-Flow Molded, Low-Profile ABS Cooling Ductwork: The HARD Motorsport Brake Cooling DUCT kit is designed for maximum efficiency specifically for the BMW E46. The Low Profile design allows for more clearance for greater turning radius. An aluminum plate on the exterior side adds even more protection against wear from tire contact. No more destroying expensive flex hose. Race-inspired by modern duct design of top motorsport teams and manufacturers. Easy Mounting: Ducts include a sturdy aluminum mounting bracket that utilizes existing hardware. No drilling needed. Track and Daily Driver Compatible : HARD's low-profile ducts were CAD designed from laser scans of the E46 chassis to be compatible with OEM A/C Equipment. The forward splash guard will need to be modified or removed (as pictured) to allow for installation of the duct kit.

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AAF Brake Cooling Duct Kit w/Screened Ducts - E46 - Non-M

For Non-M Models

T#:7608847

Part#: 11674.3

Ships in 2 Business Days

$ 480.00 USD

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Qty

$ 480.00 USD

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Since 2010, Advanced Auto Fabrication has been producing and developing both parts and full fledged race cars. Their knowledge base covers a wide range of vehicles both domestic and imported. In the specific case of BMW, the team at AAF has a particular affinity for building and designing components for BMW race cars. AAF is proud to introduce their redesigned AAF E46 (non-M) Brake Cooling Duct Kit! Features: Extremely Light Weight – Less than 4 lbs in total! Ultra-High Airflow Inlets Tight Turning Radius Easy and Quick To Install Inexpensive to Buy and Maintain Durable for Racing Conditions Designed strong and lightweight these brake duct inlets include a massive 4' inlet. Ultimately this aids in providing higher airspeed and pressure to the brake rotor and thus better brake cooling. Inlets are manufactured by AAF in-house with a 3D printer to provide a strong and inexpensive part. Brake duct tubes included in this kit are made from lightweight and strong ABS plastic. Shaped for optimized airflow, these tubes also provide the ability for a tight turning radius even with large racing tires. Per AAF: for a SPEC E46 with the spec 255 Toyo tire, you can turn 1.5 turns from straight without hitting the tubes, which is more than enough for driving around the paddock. The tubes taper down to a 3' flex hose, to remain legal for SE46. Included in the kit are AAF's Brake Backing Plates as well. Kit Contents: Left and Right AAF 3D Printed screened inlets Left and Right 4' to 3' Molded Tubes Two 13' Sections of Flex Hose Left and Right AAF Backing Plates All Attaching Hardware and Hose Clamps

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Genuine BMW Front Brake Air Duct - Left - E46 325xi 330xi

T#:118640

Part#: 51718269953

Ships in 1-2 days

$ 105.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 25.99 USD

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$ 25.99 USD

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Genuine BMW Air Duct, Left -
This item fits the following BMW Chassis:
E46

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