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E34 M5 315mm Front Brake Upgrade for E28 528e/535i/M5

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This package uses the E34 M5's 315mm front rotors and calipers as an upgrade to any E28 5-series, including the M5 and the E24 635CSi and M6. The 315mm rotors are 31mm (1.22") bigger than a standard E28 rotor and still 15mm (.59") larger than a stock M5 rotor. The larger rotors will contribute to shorter stopping distances and the extra mass is better at managing heat, especially under track and fast road conditions. And E34 M5 rotors feature a vented hub for even better brake cooling. The E34 M5 brakes are a straight bolt-on to the stock E28 spindle. Your original brake lines and pad wear sensor fits with the new brakes. Some 16" wheels may fit over the M5 brakes but 17" wheels are better. The only other recommended item is the E32 brake master cylinder which will push more fluid through the system and avoid longer pedal travel. This has long been an underground secret upgrade among E28 enthusiasts but only recently have calipers and caliper brackets been available at very reasonable prices. You no longer have to pick them off a junk car!

Brake Rotor Size Comparison:
E28 528e284x22
E28 535i/is282x25
E28 M5300x30
E32/E34 540i302x28
E34 540i Sport/M5315x28

The original E28 M5 caliper is a 4-piston design that is becoming harder to source as a fully rebuilt unit. A new caliper from BMW will sell for around $600! Caliper seals are still available to rebuild a useable original caliper. But if the pistons or caliper housing are scored or rusted beyond saving then a full replacement is your only option. And that's what makes this kit such a great upgrade and replacement alternative. It uses OEM parts that are a direct fit to the car and replacement parts are very easy to source down the road. This has long been a common upgrade for E28 owners so this makes a great overhaul kit for cars that have already had the conversion done.

The E34 caliper has a lot more options for pads than any stock E28 caliper. The pad shape is the same as an E36 M3 so there are dozens of options for street, mixed use, and all-out track pads. We've made a few options available in the menu below or you can browse all of our E36 M3 pad options by clicking over to the pad section here.

Kit Upgrade Contents:
34112226385, 315mm x 28mm E34 M5 rotors - choose from plain blank style, cross drilled, or slotted
34211161806, rotor retaining screws (x 2)
34112226873W, E34 M5 left front caliper with bracket
34112226874W, E34 M5 right front caliper with bracket
34111151604, caliper mounting bolts (x 4)

- 16" or larger wheels are required to clear these brakes. Some 16" wheels will not clear depending on their barrel design. Spoke design on any wheel may require the use of a wheel spacer for clearance.
- These are rebuilt calipers so a core charge will apply to each. The core charge is a mandatory selection in the menu below. This charge will be refunded in full when you send back your original calipers with brackets (in the boxes we provide).
- Rebuilt calipers are not coated or painted and they will go through several stages of surface rust. If your calipers will be visible through your wheel, we strongly recommend painting or coating the calipers prior to installation.
- Larger rear rotors from the E34 are also recommended with this kit to avoid too much front brake bias. Using only the front E34 M5 brakes will shift bias towards the front which could lead to easier front wheel lockup during threshold braking. Using the larger E34 rear brakes will restore the brake balance to near stock levels.

This item fits the following BMWs:
1982-1988 E28 BMW 528e 533i 535i 535is M5
1982-1989 E24 BMW 633csi 635csi M6

Loading Kit Configurator

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Kit Configurator

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Choose brake rotors:

Choose brake pads:

Add a liter of brake fluid?

Add stainless steel brake lines?

Add E32 Brake Master Cylinder?

Base Parts (Required for Upgrade)

This Part Fits the Following BMWs

Make Model Submodel Engine
BMW E24 633CSi M30 3.2L
BMW E24 635CSi M30 3.4L
BMW E24 M6 S38 3.5L
BMW E28 524td M21 2.4L
BMW E28 528e M20 2.7L
BMW E28 533i M30 3.2L
BMW E28 535i M30 3.4L
BMW E28 535is M30 3.4L
BMW E28 M5 S38 3.5L
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.
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