Ignition for BMW E90 M3 S65 4.0L

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Your BMW's ignition system is critical for smooth engine operation. This category contains parts used in the BMW ignition system, including spark plugs, ignition coils, spark plug wires and boots, ignition rotors and caps, distributors and distributor caps. On most 1991 and later model BMWs, your car has what's known as a coil-on-plug system, where each cylinder has its own ignition coil that sits directly atop the spark plug (so you won't have spark plug wires on those BMWs.) A fresh set of spark plugs is an essential part of any BMW engine tune up.

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Spark Plug Socket 16MM 12 Point Swivel

T#:640924

Part#: CTA4329

In Stock

$ 24.28 USD

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$ 24.28 USD

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Swivel Spark Plug Socket 16MM

Ignition Service Kit - S65 E90, E92, M3

10X Entries Into Our F80 M3 Sweepstakes

T#:15677515

Part#: 12137841754-KT

Ships in 1 day

$ 2,264.99

This product was last offered at the strikethrough price on
06-08-2026

$ 2,225.99 USD

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$ 2,225.99 USD

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Your ignition system will start to fail with age, which will ruin your fuel economy as well as your performance. Turner Motorsport has created a kit that includes new coils, plugs, and hardware. This particular kit utilizes OEM and aftermarket components. See kit contents tab for a complete list of included components

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9-Wire Spark Plug Gap Gauge

T#:641657

Part#: CTA3238

In Stock

$ 3.99 USD

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$ 3.99 USD

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Always check gap on your new spark plugs

CTA Tools - Spark Plug Gapper

T#:641654

Part#: CTA3235

Ships in 3 Business Days

$ 1.99 USD

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$ 1.99 USD

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CTA Tools - Spark Plug Gapper is an essential tool for accurately setting and measuring spark plug gaps, ensuring optimal engine performance. This precision tool is designed for both professional and DIY mechanics, providing reliable gap adjustments for a variety of engine applications.

Versatile Measurement Range: The ramp gauge measures gaps from .020 to .100 inches (0.50 to 2.5 mm), accommodating a wide range of spark plug specifications.
Precision Engineering: Engineered to deliver accurate gap settings, improving engine efficiency and performance.
Made in the USA: Crafted with high-quality materials to ensure durability and long-lasting performance.
Easy to Use: Simple design makes gap adjustments quick and straightforward, enhancing convenience in any workshop or garage setting.

Upgrade your toolset with the CTA Tools - Spark Plug Gapper to achieve precise spark plug gaps and optimize your engine’s performance.

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S65 Ignition Service Kit - E9X M3

10X Entries Into Our F80 M3 Sweepstakes

T#:55569528

Part#: 12137841754KT5

Ships in 1 day

$ 2,245.99

This product was last offered at the strikethrough price on
09-14-2026

$ 2,220.99 USD

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$ 2,220.99 USD

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The Turner Motorsport S65 Ignition Service Kit restores ignition timing and ionic knock-sensing accuracy on the BMW E9X M3 S65 engine. Worn spark plugs alter cylinder electrical resistance, disrupting ionic current knock detection across the ignition coils. Replacing all eight NGK plugs, S65 coils, and applying AGS dielectric boot protector restores precise combustion and knock monitoring.

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Ignition for BMW E90 M3 S65 4.0L

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Spark Plug Socket 16MM 12 Point Swivel

Ignition Service Kit - S65 E90, E92, M3

9-Wire Spark Plug Gap Gauge

CTA Tools - Spark Plug Gapper

S65 Ignition Service Kit - E9X M3

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