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Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

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Blue Thermostat Caps (pair)

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T#:54139632

Part#: BMS-TCP-BLU

Ships in 1 Business Day

$ 29.00 USD

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$ 29.00 USD

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Red B58 BMW Coil Upgrade Adapter Kit - N55

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T#:57086690

Part#: BMSN55CUAK-R

Ships on Nov 16, 2026

$ 199.00 USD

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$ 199.00 USD

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Upgrade your N55 ignition system with the N55 → B58 Coil Upgrade Adapter Kit, engineered for a seamless, plug-and-play conversion. This kit lets you run modern B58-style pencil coils on your N55 without modifying the factory harness or compromising valve cover integrity.

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Rod Bearing Set - Standard (48.00 Mm)

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T#:55821723

Part#: 11241715701

Ships in 1 Business Day

$ 164.99 USD

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$ 164.99 USD

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Active Autowerke Rotrex Traction Fluid - 1 Liter

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T#:57616348

Part#: RTF-1L

Ships in 3 Business Days

7% off MSRP $ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD

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7% off MSRP

$ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD

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Rotrex superchargers utilize a unique traction drive system that sets it apart from other centrifugal-style superchargers. For best performance, Rotrex recommends replacing this fluid every 50,000 miles. This bottle of traction fluid is plenty enough for one supercharger service (typically 750ml).

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Main Bearing Set (Standard)

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T#:55857747

Part#: 11211725917

Ships in 1 Business Day

$ 90.99

This product was last offered at the strikethrough price on
07-15-2026

$ 87.99 USD

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$ 87.99 USD

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Active Autowerke Supercharger Kit Gen 2 Level 4 - E9X M3 S65 4.0L ...

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T#:57616347

Part#: 12-032-C38

Ships in 10 Business Days

$ 23,749.00 USD

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$ 23,749.00 USD

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The Active Autowerke Supercharger System is powered by a Rotrex C38-92R Supercharger Unit mounted with a custom CNCed bracket that uses a dedicated drive belt system, while eight high flow fuel injectors are used to supply the additional required fuel. Active Autowerke's Performance Software, available for 91-93 octane, race gas, and octane levels unique to other countries, is carefully calibrated, and is at the heart of the system to provide an unparalleled driving experience. Keeping within the factory's OBDII parameters, the Active Autowerke Supercharger System ensures consistency for everyday driving. The Level 4 system includes a water/methanol injection system with upgraded pulley and custom software.

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Dinan Iridium Spark Plug - Heat Range 12 (NGK 8) - BMW B48TU2 / B58TU...

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T#:56327172

Part#: D640-0003

Ships on Nov 24, 2026

Sale - Save 13% $ 21.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 19.14 USD

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Sale - Save 13%

$ 21.99

This product was last offered at the strikethrough price on
09-29-2026

$ 19.14 USD

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Dinan Iridium Spark Plugs are an excellent upgrade for tuned, and even stock engines. Our spark plugs are made from Iridium - one of the strongest materials available. They last longer than other materials with higher melting points, run cooler, resist preignition, and even require less voltage to produce a strong spark. The iridium electrode with its copper core is harder and stronger than other materials, can dissipate heat more easily, and is better protected from melting, cracking, and other limitations found with standard plugs. Dinan spark plugs are great for high boost, high cylinder pressure, high cylinder temperatures, and high-power situations, and they pair nicely with a set of Dinan ignition coils, where applicable. However, they are not only for tuned and higher output vehicles that may benefit from a plug cooler than the factory heat range - they also are applicable to non-tuned / stock vehicles as well! The D640-0003 spark plug applies to the following engines: B48 TU B58 TU2 (Gen 2 B48 Gen 3 B58)

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BMW Engine Parts

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Blue Thermostat Caps (pair)

Red B58 BMW Coil Upgrade Adapter Kit - N55

Rod Bearing Set - Standard (48.00 Mm)

Active Autowerke Rotrex Traction Fluid - 1 Liter

Main Bearing Set (Standard)

Active Autowerke Supercharger Kit Gen 2 Level 4 - E9X M3 S65 4.0L ...

Dinan Iridium Spark Plug - Heat Range 12 (NGK 8) - BMW B48TU2 / B58TU...

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