ZF 5-Speed Race Prepared Transmission

ZF 5-Speed Race Prepared Transmission

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Our ZF 5-speed race-prepared transmission was created in our World Challenge race program through a partnership with Diffsonline, and it's now available for public purchase.

  • Genuine BimmerWorld race transmission
  • Fast shifting REM-polished internals for reduced friction/heat
  • 2-3% less power loss versus non-race transmission, 6-10 Hp difference
Starting life as a stock 5-speed ZF transmission, this race-prepared unit is completely rebuilt to stock specs in order to make shifting smoother and faster. This transmission can be shifted as fast as a sequential box by an experienced driver!

While the transmission internals are out, all non-friction mesh and bearing surfaces are cleaned through REM polishing. This isotropic polishing process leaves gears and bearing surfaces mirror smooth, which reduces friction, which consequently reduces heat and driveline power loss.

Our cars had a 2-3% reduction in driveline losses on a chassis dyno with this transmission alone (this equates to 6-10 Hp on an average M3 Prepared-class engine!) - plus, you spend more time accelerating due to faster shifts.

This unit is stock fitment for E36 328i/M3, E46 328i/330i, E39 528i/530i, Z3 2.8/3.0, and MZ3. Our race transmission can be retrofitted to most race applications including other M50-based engines with the proper gear linkage and driveshaft.

Call with further questions or specifications. Price includes $800 core charge for an acceptable piece (no junk please!). Customer is responsible for return core shipping.

REM is a registered trademark of REM Chemicals Inc. - registered in the U.S. Patent and Trademark Office.

A core charge applies to this purchase. The supply of original parts for rebuilding keeps the final purchase price low. The core must match the part that was supplied in terms of fitment, type, application, accessories, and hardware. Damaged or modified cores will not receive a refund. A core charge can only be refunded once the core has been inspected and approved. Click here for our Core Policy.

BMW Fitments:

3 Series
E36 (92-99) > 325i
E36 (92-99) > 325ic
E36 (92-99) > 325is
E36 (92-99) > 328i
E36 (92-99) > 328ic
E36 (92-99) > 328is
E36 (92-99) > M3 (1995)
E36 (92-99) > M3 (96-99)
3 Series
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 325xi
E46 (99-05) > 328Ci
E46 (99-05) > 328i
E46 (99-05) > 330Ci
E46 (99-05) > 330i
E46 (99-05) > M3
5 Series
E39 (97-03) > 525i
E39 (97-03) > 528i
E39 (97-03) > 530i
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 2.8
E36/7 / E36/8 Z3 (96-02) > Z3 3.0
E36/7 / E36/8 Z3 (96-02) > Z3 M - S52
E36/7 / E36/8 Z3 (96-02) > Z3 M - S54
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