Ignition for BMW F91 M8 S63 4.4L

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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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BMW N63/S63 4.4L NGK Performance One-Step Colder Spark Plug Set - ...

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T#:587466

Part#: 97506S8KT

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$ 146.99 USD

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$ 146.99 USD

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When it comes time to change your spark plugs, you may wonder about colder stepped spark plugs as many others have. Colder spark plugs work by pulling more heat out of the engine's cylinders (making them "colder") and dissipating it into the engine's head, which is then cooled by the cooling system. Depending on how you have your engine built, these could be a great addition! Colder plugs can help prevent engine knock and prevent the tip of the spark plug from melting or misfiring. There are two rules that most people tend to go by when deciding on which spark plugs to buy: The first rule of thumb is that with every 100 horsepower added, you should run spark plugs that are a step colder than your stock plugs. This is generally accepted across the motorsports community but unfortunately isn't always the most accurate measurement of when you will need colder plugs. The second rule is to go a step colder any time you massively alter cylinder temperatures by adding forced induction to an NA engine, by increasing compression ratio, after altering timing in a major way, or by changing fuel types to something with a higher octane rating such as racing fuel. Adding spark plugs that are a step colder outside of these conditions, with no real change to the engine, can actually hurt more than help by leading to spark plugs fouling quicker than normal and by making the car harder to start in cold weather conditions. We suggest talking to your engine builder or tuner before making the change, or you can call our Turner Motorsport sales staff to discuss what modifications have been made to your vehicle and see if these plugs are right for you!

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Billet Spark Plug Gapper Tool - 14mm - BMS

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T#:583132

Part#: BMSBSPGT14MM

Ships in 7 Business Days

$ 35.00 USD

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BMS Billet Spark Plug Gapper Tool - 14mm is an essential tool for achieving accurate and consistent spark plug gapping, ideal for automotive enthusiasts and professional mechanics alike. This precision tool helps maintain optimal plug performance by providing reliable, consistent gaps. Available in both 14mm and 12mm plug thread sizes, this tool is proudly made in the USA to deliver durability and precision.

Precisely gaps spark plugs for enhanced engine performance and efficiency
Speeds up the gapping process while ensuring accuracy and uniformity
Available in two sizes (14mm and 12mm) for a wider range of compatibility
Optional specialty feeler gauge included with 4 blades in thicknesses of .018, .020, .022, and .024
Made in the USA for premium quality and durability

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OEM Ignition Service Kit - BMW F90 M5 S63T4

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T#:30031512

Part#: F90M5IGNSKT

Ships in 3 Business Days

$ 668.99

This product was last offered at the strikethrough price on
04-10-2026

$ 623.99 USD

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$ 623.99 USD

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Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug. To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

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Performance Ignition Service Kit - BMW F90 M5 S63T4

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

T#:30031513

Part#: F90M5PIGNSKT

Ships in 3 Business Days

Sale - Save 2% $ 486.99

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

$ 478.20 USD

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Sale - Save 2%

$ 486.99

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

$ 478.20 USD

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High-performance ignition kit for your F90 M5 featuring Turner high-performance ignition coils. Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, and Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient, and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that gives your engine the performance and aesthetic you're looking for. Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engine's health, performance, and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy. Features and Benefits: Increased performance New spark plugs and grease Direct fitment Signature Turner Blue ignition coils

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Ignition for BMW F91 M8 S63 4.4L

Sub-Categories

BMW N63/S63 4.4L NGK Performance One-Step Colder Spark Plug Set - ...

Billet Spark Plug Gapper Tool - 14mm - BMS

OEM Ignition Service Kit - BMW F90 M5 S63T4

Performance Ignition Service Kit - BMW F90 M5 S63T4

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