BMW Brake Cooling Ducts & Backing Plates for BMW E46 M3 S54 (1999-2005)

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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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Turner Motorsport Steering Rack Stop Kit
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Turner Motorsport - Corporate Logo
T#:338960
Part#: RACKSTOP
In Stock
Sale - Save 18% $ 49.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 40.99 USD
Free Shipping on orders $49 and up
Sale - Save 18%
$ 49.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 40.99 USD
Free Shipping on orders $49 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

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AAF Brake Backing Plates - E46 M3
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Advanced Auto Fabrication - Corporate Logo
T#:7608851
Part#: 116102.2
Ships in 3 Business Days
$ 175.00 USD
Free Shipping on orders $49 and up
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. These Backing Plates by Advanced Auto Fabrication feature a large “Pocket” to allow for more efficient air flow into the brake hat. This allows air to travel through the vents in the rotor. AAF's Backing Plate is the full size of the rotor and is a heat shield for the shocks and ball joints. Heating of your shock oil causes oil thinning, which changes the shock dampening characteristics. Protecting your ball joints from heat will improve longevity and prevent premature wear. The backing plates are powder coated black for extra durability and attractive aesthetics. They replace the OEM dust shields, and will need to be removed before installation.
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Genuine BMW Front Brake Dust Shield - Left - E46 M3
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Genuine BMW - Corporate Logo
T#:19742
Part#: 34112282109
Ships in 4 Business Days
4% off MSRP $ 93.99

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

$ 89.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 93.99

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

$ 89.99 USD
Free Shipping on orders $49 and up


Genuine BMW Protection Plate Left
This item fits the following BMW Chassis:
E46 M3,E46


Genuine BMW Rear Brake Dust Shield - Right - Z4 S54 3.2L, E46 S54 3.2...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:62166
Part#: 34212228966
In Stock
Sale - Save 6% $ 81.99

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

$ 77.23 USD
Free Shipping
Sale - Save 6%
$ 81.99

This product was last offered at the strikethrough price on
06-15-2026

$ 77.23 USD
Free Shipping


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


Genuine BMW Rear Brake Dust Shield - Left - E46 M3, Z4 M
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:62165
Part#: 34212228965
Ships in 4 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
Free Shipping
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
Free Shipping


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

Genuine BMW Front Brake Dust Shield - Right - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:61732
Part#: 34112282110
Ships in 4 Business Days
4% off MSRP $ 93.99

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

$ 89.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 93.99

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

$ 89.99 USD
Free Shipping on orders $49 and up


Genuine BMW Protection Plate Right
This item fits the following BMW Chassis:
E46 M3,E46


HARD Motorsport Brake Duct Inlets and Fog Light Delete -- E46 M3 ...
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HARD Motorsport - Corporate Logo
T#:390238
Part#: DUCTINLETS.E46
In Stock
$ 199.00 USD
Free Shipping
$ 199.00 USD
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.

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HARD Motorsport Brake Cooling Low-Profile Duct Kit - E46 M3
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HARD Motorsport - Corporate Logo
T#:599638
Part#: E46BRKDUCTONLY-X
Ships in 10 Business Days
$ 279.00 USD
Free Shipping
$ 279.00 USD
Free Shipping
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 Duct Kit - E46 M3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For M3 Model Only
Advanced Auto Fabrication - Corporate Logo
T#:7608850
Part#: 116102
Ships in 3 Business Days
$ 450.00 USD
Free Shipping on orders $49 and up
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 M3 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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