BMW Brake Cooling Ducts & Backing Plates for BMW E30 M3 S14 2.3L

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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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Brake Cooling Duct - E30 M3
Brake Cooling Duct - E30 M3
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Turner Motorsport - Corporate Logo
T#:302376
Part#: 3624-BLACK
Ships Jul 2, 2025
Sale - Save 3% $ 49.99
$ 48.49 USD
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Sale - Save 3% $ 49.99
$ 48.49 USD
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This cooling duct can be mounted to your front bumper and paired with any aftermarket hose and rotor backing plate to direct air straight to your rotors to help keep temps down under heavy braking events. This cooling duct replaces a fog light or fog light delete panel. Air hose/tube and rotor backing plate not included.
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Turner Motorsport Steering Rack Stop Kit
Turner Motorsport Steering Rack Stop Kit
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Turner Motorsport - Corporate Logo
T#:338960
Part#: RACKSTOP
Ships Dec 18, 2025
Sale - Save 17% $ 47.99
Starting at $ 39.99 USD
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Sale - Save 17% $ 47.99
Starting at $ 39.99 USD
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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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E30 M3 Brake Backing Plates (pair)
E30 M3 Brake Backing Plates (pair)
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:3810
Part#: RE1547
Ships Jul 7, 2025
Sale - Save 10% $ 377.99
$ 340.19 USD
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Sale - Save 10% $ 377.99
$ 340.19 USD
Free Shipping
Add to Wish List
These allow you to duct fresh, cool air to the center of the rotor where it needs it most. The addition of these backing plates and appropriate ducting will increase brake pad life by as much as 50%! A cooler braking system will also dramatically reduce brake fade and decrease braking distances.

This item fits the following BMWs:
1987-1991 E30 BMW M3
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Race German E30 Brake Duct Inlet Adapters (set)
Race German E30 Brake Duct Inlet Adapters (set)
For late model E30s only (1989-1991)
Race German - Corporate Logo
T#:7703239
Part#: RGE30DIA
In Stock at Vendor
$ 60.99 USD
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$ 60.99 USD
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Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. Cooling your brakes is essential for high endurance racing, or track days. Your brakes tend to fade after a 15 minute session on track, so Race German has developed a way to cool them. The late model E30 bumper already has inlets for brake cooling, but an adapter is needed to convert the square outlet to a 3" outlet for common brake ducting. These E30 brake duct inlet adapters are CAD designed and 3D printed here in the USA. They perfectly fit around the OEM E30 inlet duct and convert to the 3" outlet you need. There are holes printed in the ducts to secure them with provided zip ties so they do not fall out. **3D printed parts can have minor imperfections.
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