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Spark Plug Wires

Spark plug wires transmit spark energy from the distributor to the spark plugs. Routine inspection and replacement are necessary as the shielding can become brittle and crack as the miles accumulate. Turner Motorsport carries Genuine BMW and high performance upgrade options depending on your individual needs.

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Bavarian Autosport High Performance Ignition Wire Set - M42 M44 - Wit...

T#:578899

Part#: 12121721932P

In Stock

Sale - Save 3% $ 199.99

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

$ 193.99 USD

Add to Wish List

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Sale - Save 3%

$ 199.99

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

$ 193.99 USD

Add to Wish List

Loosen the reins on your thoroughbred with our 8 mm ignition wires. Stock Ignition wires have built-in resistors that reduce voltage to your spark plugs. That's like keeping a tight rein on a thoroughbred race horse -- it wants to run faster but can't. Our 8mm wires loosen those reins, providing the hotter spark your BMW craves. Both the wires and boots use a spiral core magnetic suppression conductor to provide a higher spark voltage for maximum combustion efficiency. And they're insulated with 8mm of pure silicone to completely eliminate interference. Be aware that due to the increased size of the wire these will not fit in the factory wiring loom. 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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