Diff Lab is OS Giken Australia, and the only authorised distributor and warranty agent of OS Giken products in Australia. We have the largest range of OS Giken in Australia, and we are the only shop with the expertise to set up your OS Giken Superlock equipped differential so that it is the very best it can be.

BUY DIRECT AND SAVE Most small parts qualify for inexpensive national freight to metro areas at just $15.

INTERNATIONAL SHIPPING is available to most countries.

PRICE GUARANTEE is available on most items we stock. If you find a stocked item cheaper somewhere else, Diff Lab will beat that price and offer fast postage to get the item in your hands ASAP.

FAST EXCHANGE is available on full differential builds. Return freight is organised for you. It's so quick and easy to exchange your tired old diff for a new LSD or torque-biasing differential. Freight is fast and inexpensive to most metro areas.

Diff Lab is a Euro specialist and the largest seller of BMW, Mercedes, Volkswagen, Audi, Nissan and Toyota limited slip differentials, gear sets and rebuild kits in Australia.

Diff Lab stocks BMW gear sets in all sizes (168mm, 168k, 188mm, 188k, 188L/LW, 210mm and 215k) to fit your differential. BMW Motorsport, OS Giken and MFactory forged gears are available as a new item. Diff Lab stocks LSDs to fit your BMW differential in 168mm, 168k, 188mm, 188k, 215k and 210mm, in various configurations including 4-clutch, steel-plate, helical and 1.5-way adjustable units.

100% Australian, with local support, genuine parts an quick delivery on most items. Some items are Australian Made. Complete, ready-to-bolt-in differentials are available.

Diff Lab can prepare an engine tuning package for your vehicle, with a standalone engine management system, power distribution system and custom wiring harness. Diff Lab is a dealer for AiM digital colour dash products and dataloggers. We also fit AiM camera systems with on-screen display.

Diff Lab can assemble a new race engine for your competitive circuit racing vehicle. We can also fit the engine management and tune the new engine. Diff Lab is an authorised dealer for Motec, Syvecs, and Haltec, and is a non-authorised retailer of Link Engine Management products.

Diff Lab can offer advice on custom camshafts, and is a dealer of Cat Cams. Custom profiles are available, and Diff Lab can advise on whether a custom profile may be needed.

Diff Lab fits K-Sport and D2 suspension, brakes, air-bags, carbon brakes, and forged wheels. These products are not currently listed for online sale, and can only be purchased at the workshop for fitting by Diff Lab.

Removal and installation of differentials is performed at one of our Partner Workshops around Australia or in-house at Diff Lab in Coopers Plains, QLD.