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BMW Engine Parts

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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Precision Raceworks - Corporate Logo
T#:35761669
Part#: 201-0409
Ships in 8 Business Days
$ 199.99 USD
Free Shipping on orders $49 and up
The **Precision Raceworks S58/B58 Plug-and-Play Install Harness for the Motiv ReFlex+** is certified by Motiv Motorsports and is an essential upgrade for anyone integrating a ReFlex+ into their S58 or B58 vehicle. This Harness replaces only the signal and power sub harness portion of the Motiv Reflex. Standard universal Motiv ReFlex Plus harness required for use of this Plug and Play Harness - ES#4810312 / ES#4810314 This innovative harness eliminates the need for cutting, crimping, or splicing into your factory wiring, providing a straightforward, fully reversible installation. Simply plug it in, and you're ready to go! ### Why Choose the Precision Raceworks Harness? Although the main harness included with the Motiv ReFlex+ is well-designed, its standard sub-harness requires splicing into the factory wiring. Precision Raceworks addresses this by offering a plug-and-play replacement for the sub-harness. This solution retains the high-quality main harness, avoids unnecessary costs, and simplifies installation for seamless performance. ### Key Features of the Precision Raceworks X58 Harness: - **Motiv Motorsports Certified**, ensuring complete compatibility. - **100% Plug-and-Play** for a quick, hassle-free installation. - **Compatible with Tuning Platforms** such as MHD, MHD+, EcuTek, and BM3. - **Premium Build Quality**, manufactured in an ISO 9001-certified facility using automotive-grade wiring. - **Fast Installation**, completed in as little as one hour. - **Reversible Setup**, preserving the factory harness with no permanent modifications. The Precision Raceworks harness is the ideal choice for ReFlex+ users seeking a reliable, cost-effective, and user-friendly solution without altering their vehicle's original wiring.
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Precision Raceworks - Corporate Logo
T#:38195384
Part#: 201-0002-1
In Stock
$ 69.99 USD
Free Shipping on orders $49 and up
The Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered for low resistance and maximum performance, these custom-designed spark plug wires deliver exceptional reliability. Precision Raceworks is the only manufacturer worldwide to produce spark plug wires with boots specifically designed for N54 BMW engines, guaranteeing a perfect fit and superior quality.
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Beru - Corporate Logo
T#:584875
Part#: 12218591724
Ships in 3 Business Days
$ 126.99 USD
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$ 126.99 USD
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Sends power to the glow plugs to preheat them for ignition.


Precision Raceworks - Corporate Logo
T#:38195408
Part#: 601-0049
In Stock
$ 299.99 USD
Free Shipping on orders $49 and up
The Precision Raceworks High Performance Fuel Pump is designed for customers looking to run all blends of E85. This kit includes a Walbro fuel pump capable of flowing up to 50% more fuel than the factory fuel pump and is 100% E85 compliant. Best of all this pump ships with the necessary lines pre-attached to keep your installation as simple as possible! By design, a fuel pump such as this is ideal for daily driving and racing applications of all kinds. This system keeps the fuel pump fully submerged in fuel regardless of tank level or the g-force the car is subjected to providing cool running temperatures allowing the pump to provide many years of service. Stage 2.5 (3.1 liters per minute) - Our Stage 2.5 bucketed fuel pump comes with a single Walbro 535 (F90000295) fuel pump. This pump can support up to 675whp (Rated for 600whp on 100% E85) and is an easy DIY task.
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Precision Raceworks - Corporate Logo
T#:38195401
Part#: 201-0008
In Stock
$ 49.99 USD
Free Shipping on orders $49 and up
The **BMW N55 Replacement Coil Power Harness** by Precision Raceworks is a premium, direct-fit replacement for the factory harness, designed to enhance reliability and ensure consistent power delivery to the ignition coils. Constructed with high-quality automotive-grade materials, it optimizes electrical conductivity while minimizing the risk of misfires and performance issues. ### **Key Features:** - **OEM-Compatible Design:** Plug-and-play installation for a seamless fit. - **Superior Durability:** Built with high-temperature and abrasion-resistant materials for long-lasting performance. - **Optimized Electrical Flow:** Delivers stable and reliable power to the ignition coils. - **Compatible with All N55 Engines:** Works flawlessly with both stock and upgraded ignition systems. Perfect for both daily driving and high-performance builds, the Precision Raceworks N55 Coil Power Harness ensures smooth and efficient engine operation.
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Beru - Corporate Logo
T#:23383348
Part#: 12137510738
In Stock
$ 75.02 USD
Free Shipping on orders $49 and up
Is your Mini experiencing sluggish acceleration or misfires? It might be time to check the coil pack. The coil pack plays a crucial role in the ignition system and can affect engine performance. Replace it as necessary or ideally every 100,000 miles to keep your Mini's ignition system operating smoothly.
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Precision Raceworks - Corporate Logo
T#:34147753
Part#: 622-0284
Ships on Sep 1, 2026
$ 999.99 USD
Free Shipping on orders $49 and up
The Precision Raceworks G-Series High Performance Primary fuel pump (Kits) are designed for customers looking to run all blends of E85. These pumps are ideal for customers looking to run a single fuel line to the front of the car and feed the high-pressure fuel pump and port injection from a single pump assembly.
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Precision Raceworks - Corporate Logo
T#:27405447
Part#: 201-0399
Ships in 9 Business Days
$ 2,454.99

This product was last offered at the strikethrough price on
03-02-2026

$ 2,299.00 USD
Free Shipping on orders $49 and up
$ 2,299.00 USD
Free Shipping on orders $49 and up
The Precision Raceworks S63 High Flow Direct Injector Upgrade is tailored to enhance the performance of BMW M5, M6, X5M, and X6M models by boosting fuel output and ensuring compatibility with Ethanol. Here's a detailed breakdown of its features and specifications: **Key Features:** 1. **Enhanced Fuel Output:** These injectors deliver 31% more fuel per injector compared to standard EU5 injectors, resulting in a substantial increase in power potential. 2. **Seamless Installation:** Designed to mirror the dimensions of stock S63 injectors and equipped with identical connectors, eliminating the need for extra harnesses or spacers during installation. 3. **Ethanol Compatibility:** Fully compatible with Ethanol (E85), allowing users to capitalize on the advantages of this fuel type. 4. **OEM-Inspired Spray Pattern:** Ensures efficient fuel delivery and optimal engine performance, replicating OEM-like spray patterns. 5. **Comprehensive Installation Guide:** Each kit includes a detailed installation guide, facilitating a smooth and trouble-free setup process. **Performance Specs:** - **Gasoline WHP Potential:** Up to 1300 WHP - **E85 WHP Potential:** Up to 975 WHP - **Flow Rate:** 20.2 g/s @ 100 bar (31% increase over stock) - **Max Operating Pressure:** 250 bar / 25MPa / 3625psi **Frequently Asked Questions:** 1. **Do these injectors require coding?** - While not obligatory, coding the injectors is highly recommended to optimize their performance and enhance idle quality by eliminating compensations specific to older injectors. 2. **What software can I use to code my injectors?** - Compatible service tools include Bimmer Geeks ProTool, BMW ISTA+, Autel MaxiSys service tools, ANSEL BM700, and potentially other software options. In summary, the Precision Raceworks S63 High Flow Direct Injector Upgrade delivers substantial performance enhancements and offers flexibility in fuel choice, empowering BMW enthusiasts to unlock the full potential of their vehicles.
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Precision Raceworks - Corporate Logo
T#:38195374
Part#: 201-0129-1
Back Ordered
$ 69.99 USD
Free Shipping on orders $49 and up
The Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered for low resistance and maximum performance, these custom-designed spark plug wires deliver exceptional reliability. Precision Raceworks is the only manufacturer worldwide to produce spark plug wires with boots specifically designed for N54 BMW engines, guaranteeing a perfect fit and superior quality.
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Beru - Corporate Logo
T#:14982199
Part#: 121200405516KT
Back Ordered
$ 95.99 USD
Free Shipping on orders $49 and up
$ 95.99 USD
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Beru - Corporate Logo
T#:596879
Part#: 12321350052
In Stock at Vendor
$ 41.99

This product was last offered at the strikethrough price on
05-07-2026

$ 40.99 USD
Free Shipping on orders $49 and up
$ 40.99 USD
Free Shipping on orders $49 and up
If you are having issues with voltage peaking, lights fading in and out as your driving, or your battery keeps dying despite the car running, It could be the result of a faulty voltage regulator. Voltage regulators control the amount of power coming from the alternator.
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Beru - Corporate Logo
T#:46512968
Part#: 12122293697KT2
In Stock at Vendor
$ 82.99

This product was last offered at the strikethrough price on
05-02-2026

$ 80.99 USD
Free Shipping on orders $49 and up
$ 80.99 USD
Free Shipping on orders $49 and up
Keep your engine running smooth and performing at its best by refreshing your plugs as part of your routine maintenance.
Precision Raceworks - Corporate Logo
T#:38195381
Part#: 501-0074
In Stock
$ 13.99 USD
Free Shipping on orders $49 and up
Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered with low-resistance, high-performance technology, these spark plug wires are a completely custom design. As the sole manufacturer worldwide to produce spark plug wires with boots specifically tailored for N54 BMW engines, Precision Raceworks guarantees precise fitment and superior quality.
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Beru - Corporate Logo
T#:168056
Part#: 82110404488
Ships in 1 day
$ 79.48 USD
Free Shipping on orders $49 and up

Revitalize your Mini's performance with Beru MINI Cooper Spark Plug Wires, designed to restore power and ensure optimal engine function. Recommended for replacement at 60,000-mile intervals, these wires play a crucial role in maintaining ignition efficiency. If you're experiencing low spark or misfires and have ruled out issues with the coil or spark plugs, faulty spark plug wires could be the culprit. Keep your Mini running smoothly by replacing worn-out wires that may have developed rust on the connections. With this wire set, enjoy happy motoring and consistent spark across all cylinders. Beru MINI Cooper Spark Plug Wires provide the reliability and quality your Mini deserves.

  • Restores power and performance
  • Recommended replacement at 60,000-mile intervals
  • Addresses issues like low spark or misfires
  • Prevents rust buildup for consistent ignition
  • Includes plug wires for cylinders 1 - 4
  • Ensures happy motoring and great spark
MINI IGNITION LEAD RETROFIT KIT B
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Beru - Corporate Logo
T#:338884
Part#: FGR-6DDU
Back Ordered
Sale - Save 17% $ 23.99

This product was last offered at the strikethrough price on
05-14-2026

Starting at $ 20.00 USD
Free Shipping on orders $49 and up
Sale - Save 17%
$ 23.99

This product was last offered at the strikethrough price on
05-14-2026

Starting at $ 20.00 USD
Free Shipping on orders $49 and up
RACING SPARK PLUG FOR M50/M52/M54 ENGINES
These spark plugs are recommended by BMW Motorsport for use in their DTC racing engines. We find a slight horsepower increase and greatly increased durability over the OEM road car spark plugs in competition use. We attribute the improvements to the fact that these spark plugs are designed for the high temperatures and cylinder pressures encountered in a racing engine. These spark plugs are a direct replacement and come pre-gapped just like the factory road car plugs.
Please note: these plugs are not for the S54 engine in the E46 M3, MZ3, or Z4 M
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Precision Raceworks - Corporate Logo
T#:38195376
Part#: 501-0076
Ships in 9 Business Days
$ 13.99 USD
Free Shipping on orders $49 and up
Precision Raceworks BMW N55/N54 Relocation Replacement Spark Plug Wires are the same high-quality wires featured in our acclaimed BMW N55 High-Performance Ignition Kit. Engineered with low-resistance, high-performance technology, these spark plug wires are a completely custom design. As the sole manufacturer worldwide to produce spark plug wires with boots specifically tailored for N54 BMW engines, Precision Raceworks guarantees precise fitment and superior quality.
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Precision Raceworks - Corporate Logo
T#:35087392
Part#: 601-0283
Ships in 10 Business Days
$ 1,799.99 USD
Free Shipping on orders $49 and up

The Precision Raceworks G8x/G2x Stand Alone Auxiliary Fuel System is the highest-performing and most stable low-pressure fuel system on the market! Forget about how things have been done and embrace the benefits of dedicated fueling for your port injection!

Since direct injection came out for BMW, enthusiasts have been adding port injection.  With this came the need to upgrade the low-pressure fuel system to keep up.  Historically this was done by increasing the output of the main fuel system.  Unfortunately, the main fuel pump is controlled using PWM by a factory programmed controller designed to reduce output when target fuel pressure (typically 5 bar) is exceeded, creating a constant battle when pumps are added or upgraded.  This limits upgraded fuel pumps from performing to their full potential.

Additionally, the high-pressure pump control system dumps fuel back into the low-pressure system at high pressure low volume resulting in oscillations of the low-pressure fuel system.  Because of this, the DI system in the car is required to constantly make corrections to keep target AFR in check.

With this stand-alone low-pressure fuel system dedicated to your port fueling that is a thing of the past!  Get rock-solid fuel pressures at any pressure, run fuel pressures that are 1:1 scalable to boost pressure, flow more fuel with dedicated lines, run smaller injectors and still get more fuel than you did with large injectors (allowing for higher resolution), put less demand on the car’s DI system to correct for fluctuations in pressure, even your tuner will be grateful as the system makes tuning of port fueling even easier and more accurate, the list of benefits goes on and on!


Features & Benefits


Billet Aluminum top hat with 3 high-flow fuel ports

Dedicated fuel pump(s) for port injection system

Optimal pump location resistant to fuel slosh under acceleration

Fully adjustable 1:1 scaling billet fuel pressure regulator

10-micron USA made Microglass fuel filter (Ideal for E85)

Smooth bore high flow PTFE fuel feed & return lines (AN6)

All billet connections for both fuel line fittings and top-hat

Plug and play connectors inside and outside* the top hat

Configurable pump activation harness (see instructions for more details)

Increased injector flow (when using 1:1 regulator feature vs static)

Compatible with all stock or upgraded primary fuel pumps

Easily expandable and upgrade-able for more fuel

All components and parts feature 100% Ethanol Compatibility

The AFS.640 dedicated auxiliary fuel system comes with all** necessary components to provide dedicated fuel system for port injection.  Featuring Two Walbro 450’s (F9000274) fuel pumps with a combined flow of 640LPH at 3 bar.


Pump flow 43.5 psi-a : 640 lph

Recommended base pressure: 43.5 psi-g

Maximum Fuel Pressure: 110 psi-g

Number of Fuel Output Ports: 2

Number of Fuel Return Ports: 1

Pump 1: Walbro 450 (F90000274)

Pump 2: Walbro 450 (F90000274)

Available (unused) Electrical Connections: 2*

Total System Weight: 14 lbs (including fuel lines and wiring harness)



*At time of install some wiring in the car may need to be cut and spliced to connectors included in this kit


**Male AN8-ORB to Female AN6-ORB adapter may be required for compatibility with some fuel rails (not included in kit)

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Precision Raceworks - Corporate Logo
T#:38195425
Part#: 601-0150-1
Ships in 9 Business Days
$ 479.99 USD
$ 479.99 USD
Rid your BMW's N55 of misfires, sluggish throttle response, rough idle, and power loss with Precision Raceworks' High-Performance Ignition Kit! Precision Raceworks' ignition kit is designed to fit any vehicle with an N55 engine and offers the highest output of any kit on the market! Featuring 100% Plug-&-Play connections, low resistance 50ohm/ft proprietary plug wires, and design technology from Marine and Aerospace applications, these coils are guaranteed to output consistent high voltage and current for optimal ignition system performance and reliability. Every component in this kit meets or exceeds OEM quality and features premium seals for dust and water resistance. While coils do not directly increase horsepower, stock BMW coils can wear out quickly, resulting in underperforming voltage and current output. This often leads to weaker spark intensity and reduced power outpaut. Due to the increased voltage and current output, many customers have seen as much as 20+ whp/wtq gained by switching to Precision Raceworks coils over all other coils on the market! By upgrading to Precision's Performance Ignition Kit, spark quality can be restored, and lost power regained often with the additional power beyond what other coils provide. No software tune is required for installation or operation, but if desired, coil output can be increased to 118mJ from most software tuning companies! Features: Fits any N55 BMW engine w/ the stock intake manifold 100% Plug & Play! Highest Voltage and Current Output Available Low Resistance 50ohm/ft proprietary plug wires Eliminates Ignition Related Misfires Improves Throttle Response Restores Smooth Idle Specifications: Weight: 9lbs Full DME control of ignition coils: Yes Retains factory cooled controlled system: Yes 100% Plug and Play wiring: Yes Connection style: OEM Weatherproof Quick Connect Coil output: Up to 118mJ FITMENT NOTES: OEM Manifold Kits mount to the DI fuel rail. May require removal of the factory airbox and removal of the post on the manifold (Cars that have airbox on top of the intake manifold). Aftermarket intake highly recommended and may be required on some applications. Not compatible with OEM airbox (or any airbox that sits on the manifold in the same location as the coils) and may require removal of a mounting peg on the manifold. F10 and e9x N55 Chassis cannot fit both ignition kit and aftermarket manifold due to inlet location across the back of the engine.
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Beru - Corporate Logo
T#:637736
Part#: 12120040551
Back Ordered
$ 15.99 USD
Free Shipping on orders $49 and up
$ 15.99 USD
Free Shipping on orders $49 and up

Beru - Corporate Logo
T#:596875
Part#: 12131730412
Back Ordered
$ 15.99 USD
Free Shipping on orders $49 and up
Sometimes a bad coil may just be a broken or damaged connector boot. This is especially true on cars with a leaking valve cover gasket where the oil has contamintated the rubber boot and the electrical parts inside. This boot can be replaced on its own without having to buy a whole new coil. This part is also useful if you purchased a coil that did not come with a new boot.
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