BMW E46 316 328i Brake System Brake Caliper Adapter 4-piston Porsche 996 Brake Caliper 328x20 Brake Disc BMW E46 M3 Tuning Adapter

✓ 328x20 34212282303 / 34212282304 BMW E46 M3 brake disc
✓ 4-piston 986352421 / 986352422 Porsche 986 brake caliper
✓ rear axle

€207.44*

Available

Product number: 729

Delivery by Tuesday, 15.07.2025 if you order within the next 23 Hours.

Product number: 729

Weight: 1.816 kg

Brake caliper hole spacing: 130

Hole spacing steering knuckle: 76

Mounting location: rear!

Your benefits

Easy TÜV registration
Quality Made in Germany
Fair prices without middlemen you buy directly from the manufacturer and developer of the product
Worldwide no. 1 in tuning adapters
15 years expert knowledge
10 years warranty

Brake caliper adapter, rear axle, on models BMW E46, for conversion to the E46 M3 brake discs with 328x20 mm, combined with the brake calipers Porsche 986, 996.

Suitable for all E46 (except M models) suitable without modifications.

Advantages:

high deceleration
thanks to the material certificate supplied with the order, it is possible to register your purchase even for series vehicles
directly fit to the above-mentioned models and therefore can always be restored to the original state without any problems
our EPYTEC brake caliper adapters do not require any sending of your serial parts, no welding, milling or drilling

Required components:

brake disc: rear BMW E46 M3, 328x20mm, reference 34212282303 oder 34212282304
brake caliper: Porsche 986, reference 986.352.421 / 986.352.422, or reference 996.352.421 / 996.352.422

Delivery:

2x brake caliper adapters for den BMW E46
high-strength mounting screws
material certificate

Tips, information and advice:

To improve ventilation of the brake system, we recommend removing the anchor plates/brake dust plates.
For easy mounting of the rim, we recommend purchasing two of our wheel mounting aids at the same time >>go directly to the article here<<
We cannot give you a generalised answer as to which rim size you can ride after your brake conversion. There are simply too many different wheel rims. For this reason, we have developed a template with which you can easily check whether the brake system kit fits under your rim. We have included a link to the template in the description. If your rim does not fit, you can simply use wheel spacers. >> Go directly to customised wheel spacers <<
Install the adapter with the required components and then check whether new brake lines are required, as the old ones may not be long enough or the connection may not fit, depending on the model. Due to the significantly better efficiency, we recommend switching to steel braided lines. We have developed a steel braided line configurator especially for this function, which you can use to assemble and then install them according to your requirements. Click here for the steel flex configurator >> Configure steel flex brake line <<
The handbrake cable must always be used from the installed calliper, which means that the new handbrake cable may have to be adjusted slightly. For conversions in which the original calliper is still used and the original handbrake cable can be used, you may have to route it more directly to compensate for the larger disc diameter and longer travel

Please note that our articles have been designed for racing and motorsport. Use in public road traffic usually requires an individual approval in accordance with § 21 StVZO by an officially recognised expert. Further information can be found under TÜV Süd. For the individual approval, we will provide you with an expert opinion or material certificate, if available.

We provide a TÜV certificate with this adapter. This means that the TÜV inspector can easily register the adapter.

Technical data:

Brake caliper hole spacing: 130

Hole spacing steering knuckle: 76

Mounting location: rear!

Brake caliper hole spacing: 130

Hole spacing steering knuckle: 76

Mounting location: rear!

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Can I also use other brake discs as specified in the required components?
No, unfortunately that is not possible. The reason is simply: all brake calipers have different heights and depths. If another brake disc is installed, the brake caliper would either not fit on the adapter or not run in the middle of the brake disc. But if you want to install a different brake caliper, we also have an option for you. You can have a custom-made product made for you, take a look at the following link for more information: https://epytec.de/uk/custom-made-products/brake-technology/adapters-for-brake-systems
Can I also use other brake calipers as specified in the required components?
No, unfortunately that is not possible. The reason is simply: all brake calipers have different heights and depths. If another brake disc is installed, the brake caliper would either not fit on the adapter or not run in the middle of the brake disc. But if you want to install a different brake caliper, we also have an option for you. You can have a custom-made product made for you, take a look at the following link for more information:

Questions? Click here for the contact form

Motor	Motorcode
330d	E46\|184PS(135KW)
318i	E46\|143PS(105KW)
318d	E46\|116PS(85KW)
323i	E46\|163PS(120KW)
328i	E46\|193PS(142KW)
318i	E46\|136PS(100KW)
320d	E46\|150PS(110KW)
330xd	E46\|184PS(135KW)
323i	E46\|170PS(125KW)
330i	E46\|231PS(170KW)
325i	E46\|192PS(141KW)
320i	E46\|170PS(125KW)
320i	E46\|150PS(110KW)
316i	E46\|115PS(85KW)
320i	E46\|163PS(120KW)
330xi	E46\|231PS(170KW)
316i	E46\|105PS(77KW)
320d	E46\|129PS(95KW)
330xd	E46\|204PS(150KW)
320d	E46\|136PS(100KW)
330d	E46\|204PS(150KW)
318i	E46\|118PS(87KW)
325xi	E46\|192PS(141KW)

Motor	Motorcode
316 Ti	E46\|115PS(85KW)
325 Ti	E46\|192PS(141KW)
318 Ti	E46\|136PS(100KW)
318 Ti	E46\|143PS(105KW)
320td	E46\|150PS(110KW)
318td	E46\|115PS(85KW)

Motor	Motorcode
320d	E46\|150PS(110KW)
318i	E46\|116PS(85KW)
318i	E46\|143PS(105KW)
318d	E46\|116PS(85KW)
318i	E46\|118PS(87KW)
316i	E46\|115PS(85KW)
320i	E46\|163PS(120KW)
320i	E46\|170PS(125KW)
325i	E46\|192PS(141KW)
320d	E46\|136PS(100KW)
328i	E46\|193PS(142KW)
318d	E46\|115PS(85KW)
320i	E46\|150PS(110KW)

Motor	Motorcode
328 Ci	E46\|193PS(142KW)
325 Ci	E46\|192PS(141KW)
318 Ci	E46\|136PS(100KW)
323 Ci	E46\|163PS(120KW)
323 Ci	E46\|170PS(125KW)
318 Ci	E46\|143PS(105KW)
316 Ci	E46\|105PS(77KW)
320 Ci	E46\|163PS(120KW)
320 Ci	E46\|150PS(110KW)
320 Ci	E46\|170PS(125KW)
318 Ci	E46\|116PS(85KW)
320 Cd	E46\|150PS(110KW)
316 Ci	E46\|115PS(85KW)
318 Ci	E46\|150PS(110KW)
318 Ci	E46\|118PS(87KW)

Motor	Motorcode
318 Ci	E46\|150PS(110KW)
330 Ci	E46\|231PS(170KW)
320 Ci	E46\|170PS(125KW)
323 Ci	E46\|163PS(120KW)
M3 3.2	E46\|343PS(252KW)
323 Ci	E46\|170PS(125KW)
325 Ci	E46\|192PS(141KW)
330 Cd	E46\|204PS(150KW)
318 Ci	E46\|136PS(100KW)
320 Cd	E46\|150PS(110KW)
318 Ci	E46\|143PS(105KW)
320 Ci	E46\|163PS(120KW)

Motor	Motorcode
330d	E46\|184PS(135KW)
318i	E46\|143PS(105KW)
318d	E46\|116PS(85KW)
323i	E46\|163PS(120KW)
328i	E46\|193PS(142KW)
318i	E46\|136PS(100KW)
320d	E46\|150PS(110KW)
330xd	E46\|184PS(135KW)
323i	E46\|170PS(125KW)
330i	E46\|231PS(170KW)
325i	E46\|192PS(141KW)
320i	E46\|170PS(125KW)
320i	E46\|150PS(110KW)
316i	E46\|115PS(85KW)
320i	E46\|163PS(120KW)
330xi	E46\|231PS(170KW)
316i	E46\|105PS(77KW)
320d	E46\|129PS(95KW)
330xd	E46\|204PS(150KW)
320d	E46\|136PS(100KW)
330d	E46\|204PS(150KW)
318i	E46\|118PS(87KW)
325xi	E46\|192PS(141KW)

Motor	Motorcode
316 Ti	E46\|115PS(85KW)
325 Ti	E46\|192PS(141KW)
318 Ti	E46\|136PS(100KW)
318 Ti	E46\|143PS(105KW)
320td	E46\|150PS(110KW)
318td	E46\|115PS(85KW)

Motor	Motorcode
320d	E46\|150PS(110KW)
318i	E46\|116PS(85KW)
318i	E46\|143PS(105KW)
318d	E46\|116PS(85KW)
318i	E46\|118PS(87KW)
316i	E46\|115PS(85KW)
320i	E46\|163PS(120KW)
320i	E46\|170PS(125KW)
325i	E46\|192PS(141KW)
320d	E46\|136PS(100KW)
328i	E46\|193PS(142KW)
318d	E46\|115PS(85KW)
320i	E46\|150PS(110KW)

Motor	Motorcode
328 Ci	E46\|193PS(142KW)
325 Ci	E46\|192PS(141KW)
318 Ci	E46\|136PS(100KW)
323 Ci	E46\|163PS(120KW)
323 Ci	E46\|170PS(125KW)
318 Ci	E46\|143PS(105KW)
316 Ci	E46\|105PS(77KW)
320 Ci	E46\|163PS(120KW)
320 Ci	E46\|150PS(110KW)
320 Ci	E46\|170PS(125KW)
318 Ci	E46\|116PS(85KW)
320 Cd	E46\|150PS(110KW)
316 Ci	E46\|115PS(85KW)
318 Ci	E46\|150PS(110KW)
318 Ci	E46\|118PS(87KW)

Motor	Motorcode
318 Ci	E46\|150PS(110KW)
330 Ci	E46\|231PS(170KW)
320 Ci	E46\|170PS(125KW)
323 Ci	E46\|163PS(120KW)
M3 3.2	E46\|343PS(252KW)
323 Ci	E46\|170PS(125KW)
325 Ci	E46\|192PS(141KW)
330 Cd	E46\|204PS(150KW)
318 Ci	E46\|136PS(100KW)
320 Cd	E46\|150PS(110KW)
318 Ci	E46\|143PS(105KW)
320 Ci	E46\|163PS(120KW)