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Bavarian Autosport BMW Drivetrain Parts for BMW Z Series E85/6 (2003-2008)

Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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Bav Auto Universal Flex Disc - Multiple BMW Applications

For vehicles with automatic transmission or SMG transmission only

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639802

Part#: 26117511454

Ships in 3 Business Days

Sale - Save 15% $ 49.99

This product was last offered at the strikethrough price on
05-03-2026

$ 42.49 USD

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Sale - Save 15%

$ 49.99

This product was last offered at the strikethrough price on
05-03-2026

$ 42.49 USD

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This replacement flex disc (aka: the guibo) is a vibration dampener mounted on the back of the transmission which connects to the driveshaft. When it has worn, it produces a terrible vibration throughout the car. It's especially noticeable at low speeds and when starting from a standstill. Oil leaking from the back of the transmission will significantly reduce its life. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bav Auto Universal Flex Disc "Guibo" - E36 E46 E34 Z3 Z4 M Models ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:1135777

Part#: 26112226527

Ships in 1 Business Day

Sale - Save 10% $ 73.99

This product was last offered at the strikethrough price on
05-03-2026

$ 66.59 USD

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Qty

Sale - Save 10%

$ 73.99

This product was last offered at the strikethrough price on
05-03-2026

$ 66.59 USD

Add to Wish List

This Bav Auto replacement flex disc (aka: the guibo) is a vibration dampener mounted on the back of the transmission which connects to the driveshaft. When it has worn, it can produce knocking sounds and a terrible vibration throughout the car. It's especially noticeable at low speeds and when starting from a standstill. Oil leaking from the back of the transmission will significantly reduce its life. This can also be used as an upgrade on the E30 M3. It has much more rubber in between the bolt holes which makes it last longer. This is 5mm thicker than the stock E30 flex disc so adjustment of the 2-piece driveshaft may be required. The original flex disc bolts can be re-used.

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Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Tran...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639803

Part#: 24341423376

Ships on Aug 24, 2026

Sale - Save 20% $ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD

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Sale - Save 20%

$ 29.99

This product was last offered at the strikethrough price on
05-03-2026

$ 23.99 USD

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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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M18 Automatic Transmission Fill Plug - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:22690760

Part#: 24117552349

In Stock

Sale - Save 20% $ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 7.19 USD

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Sale - Save 20%

$ 8.99

This product was last offered at the strikethrough price on
05-03-2026

$ 7.19 USD

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Fits various BMW Transmissions. Includes rubber sealing washer/o-ring.

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Bavarian Autosport BMW Drivetrain Parts for BMW Z Series E85/6 (2003-2008)

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Bav Auto Universal Flex Disc - Multiple BMW Applications

Bav Auto Universal Flex Disc "Guibo" - E36 E46 E34 Z3 Z4 M Models ...

Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Tran...

M18 Automatic Transmission Fill Plug - BMW

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