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Pistons

Most BMW engines feature cast pistons. While this does wonders for weight and efficiency, they do not handle increased power levels or boost very well. Turner Motorsport carries Genuine BMW replacements as well as high performance aftermarket options for high horsepower applications.
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JE Piston - Corporate Logo
T#:33646301
Part#: 345627
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$ 1,349.99 USD
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JE Pistons for the BMW S50 engine are high-performance, forged pistons designed for durability and optimized performance in racing and high-output applications. The BMW S50 engine, found in models like the E36 M3, benefits from JE Pistons' lightweight, robust design, allowing for improved power output and engine reliability under extreme conditions. Here’s a general description of JE Pistons for the BMW S50: Forged Construction: JE Pistons are made from 2618 forged aluminum alloy, which provides superior strength and durability compared to cast pistons, making them ideal for high-performance and high-boost applications. Customizable Options: JE Pistons often offer customization in terms of bore size and compression ratios to fit specific engine builds, whether for naturally aspirated or forced induction setups. This flexibility allows tuners and builders to optimize the engine for power, reliability, and efficiency. Lightweight Design: The pistons are designed to reduce reciprocating mass, which enhances engine response and reduces strain on internal components, contributing to higher RPM capability and increased efficiency. Coating Options: Many JE Pistons feature coatings for improved performance and longevity. These include thermal coatings that reduce heat transfer and friction-reducing coatings that protect against wear. CNC Machined: Precision CNC machining ensures tight tolerances, delivering consistent performance across all pistons, which is crucial for high-stress, high-revving engines like the S50. Increased Power Potential: JE Pistons are engineered for engines making significant power increases over stock, supporting high horsepower builds in both street and track applications.
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JE Piston - Corporate Logo
T#:33846569
Part#: 312385
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$ 899.99 USD
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JE Pistons 13:1 Compression Piston Kit - BMW S14B32 Engine

Looking to push your BMW S14B32 engine to its peak performance? The JE Pistons 13:1 Compression Kit is engineered for high-revving, naturally aspirated engines, delivering the kind of power and precision that serious tuners demand. Built with JE Pistons' advanced forging technology, this kit ensures maximum strength without added weight—giving you both performance and reliability under extreme conditions.

Features:

  • 13:1 Compression Ratio: This high-compression setup optimizes cylinder pressure, resulting in more power, better torque, and improved throttle response.
  • Forged for Strength: Made from 2618 aluminum, these pistons are forged to provide superior strength and thermal efficiency, ideal for engines that operate at high RPMs or under significant load.
  • Precision Engineered: Designed specifically for the BMW S14B32 engine, ensuring a seamless fit and optimized combustion chamber dynamics for a perfect blend of power and reliability.
  • Reduced Friction: Low-friction skirt coating to reduce wear and maximize engine life, even under the harshest racing conditions.
  • Complete Kit: Includes four pistons, premium rings, wrist pins, and locks for a full installation package.
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JE Piston - Corporate Logo
T#:33646293
Part#: 297119S
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$ 299.99 USD
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The 12.5:1 compression JE piston for the S54b32 is designed to help maintain thermal efficiency and minimizes weight. Detail: 12.5:1 Compression 87.00 mm Bore – 1.271 in. CH, -8.70 CC

JE Piston - Corporate Logo
T#:33846574
Part#: 321362
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$ 899.99 USD
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JE Pistons 13.0:1 High-Compression Piston Kit - BMW S14B23 (Set of 4)

Unleash the full potential of your BMW S14B23 engine with the JE Pistons 13.0:1 Compression Piston Kit. Specifically designed for naturally aspirated applications, this high-compression setup boosts power, responsiveness, and efficiency, making it the ideal choice for race-focused builds or high-performance street engines. Built using JE Pistons' cutting-edge forging process, these pistons deliver unmatched strength and precision for your BMW engine.

Key Highlights:

  • 13.0:1 Compression Ratio: Optimized for maximum horsepower and torque in naturally aspirated engines, this high-compression setup elevates performance and throttle response, perfect for high-RPM environments.
  • Premium Forged Design: Manufactured from 2618 forged aluminum, these pistons are engineered for extreme durability and lightweight performance. Capable of withstanding high stress and temperatures, they offer reliability even under intense racing conditions.
  • Superior Combustion Efficiency: The piston dome is designed to optimize combustion chamber dynamics, promoting a clean burn and reducing the chance of detonation, while enhancing power output.
  • Friction-Reducing Coating: Skirt coating minimizes friction and wear, providing smoother operation and extending the lifespan of both the pistons and the engine.
  • Complete Set: Comes with four pistons, high-performance rings, wrist pins, and locks for a full installation package, making it easy to upgrade your engine with a single purchase.

Performance-Oriented Engineering:

Built to meet the demands of professional racers and performance enthusiasts, JE Pistons are trusted for their superior craftsmanship and strength. With a 13.0:1 compression ratio, this piston kit is the perfect solution for those looking to maximize power in naturally aspirated BMW S14B23 engines.

Application:

  • Fits BMW S14B23 Engines (E30 M3 models, race cars, and high-performance builds)
  • Ideal for naturally aspirated setups focusing on high RPM and peak power output.

Specifications:

  • Compression Ratio: 13.0:1, optimized for high-performance NA builds.
  • Material: Forged 2618 aluminum alloy for durability and strength.
  • Bore Size: Available in various sizes, including overbore options.
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JE Piston - Corporate Logo
T#:383222
Part#: JE297173
In Stock at Vendor
$ 1,324.99 USD
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$ 1,324.99 USD
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Elevate the performance of your BMW E36 M3 equipped with an S52 3.2L engine with JE Pistons 87mm Pistons (+.60mm). These pistons are meticulously crafted to deliver optimal engine performance and durability, ensuring a smooth and powerful ride. Perfect for enthusiasts looking to boost their BMW's power and efficiency.
  • Increased engine performance
  • Enhanced durability for prolonged engine life
  • Precision-engineered for perfect fitment
  • Compatible with BMW E36 M3 S52 3.2L engines
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JE Piston - Corporate Logo
T#:33713106
Part#: 361348
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$ 1,349.99 USD
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Upgrade your BMW S50B32 Euro-spec engine with JE Pistons, crafted for ultimate durability and performance. This set of 6 forged aluminum pistons is designed to handle the extreme demands of high-revving engines, making it ideal for track or street applications. Bore Size: 86.5mm Maintains the stock bore size for the BMW S50B32 engine, ensuring optimal cylinder wall thickness and structural integrity while offering enhanced performance. Dome Volume: -5.2cc The negative dome volume helps fine-tune the compression ratio, ensuring ideal combustion chamber dynamics for improved power delivery and engine efficiency, especially in naturally aspirated setups. High-Compression Design This kit supports a high-compression ratio, perfect for increasing horsepower and torque in performance applications. It's built for engines that require extra power without compromising reliability. Forged Aluminum Construction JE Pistons are made from aerospace-grade forged aluminum, known for its high strength-to-weight ratio. This ensures superior durability, reduced reciprocating mass, and improved throttle response under high-stress conditions.
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JE Piston - Corporate Logo
T#:33713103
Part#: 345632
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$ 1,349.99 USD
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Upgrade your BMW S50B32 Euro-spec engine with JE Pistons, crafted for ultimate durability and performance. This set of 6 forged aluminum pistons is designed to handle the extreme demands of high-revving engines, making it ideal for track or street applications. Bore Size: 86.5mm Maintains the stock bore size for the BMW S50B32 engine, ensuring optimal cylinder wall thickness and structural integrity while offering enhanced performance. Dome Volume: -5.2cc The negative dome volume helps fine-tune the compression ratio, ensuring ideal combustion chamber dynamics for improved power delivery and engine efficiency, especially in naturally aspirated setups. High-Compression Design This kit supports a high-compression ratio, perfect for increasing horsepower and torque in performance applications. It's built for engines that require extra power without compromising reliability. Forged Aluminum Construction JE Pistons are made from aerospace-grade forged aluminum, known for its high strength-to-weight ratio. This ensures superior durability, reduced reciprocating mass, and improved throttle response under high-stress conditions. Designed for BMW S50B32 Euro Engine Specifically engineered for the European-spec BMW S50B32 engine, these pistons fit perfectly into the OE architecture, providing seamless installation and compatibility with both stock and modified engine builds.
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JE Piston - Corporate Logo
T#:33846579
Part#: 345633S
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$ 299.99 USD
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B

JE Pistons BMW S50B32 Euro Kit - 87mm Bore (5.2cc Dome)

Take your BMW S50B32 engine to the next level with the JE Pistons Euro Kit, meticulously engineered for performance enthusiasts who demand exceptional power and efficiency. With an 87mm bore and a thoughtfully designed 5.2cc dome, this piston kit is designed to enhance combustion characteristics, ensuring maximum power delivery for both street and track applications. Crafted from high-quality materials, these pistons offer the durability and reliability needed for serious performance builds.

Key Features:

  • Precision 87mm Bore: Tailored specifically for the S50B32 engine, this bore size optimizes airflow and combustion efficiency, translating to significant horsepower and torque gains.
  • 5.2cc Dome Profile: The dome design promotes efficient combustion, enhancing fuel burn while reducing the risk of detonation under high-stress conditions, ideal for naturally aspirated setups.
  • Forged Aluminum Construction: Manufactured from premium forged aluminum, these pistons provide a perfect balance of strength and lightweight performance, making them suitable for high-revving applications.
  • Engineered for Performance: Every aspect of these pistons is designed to ensure reliability and efficiency, reducing friction and wear for improved longevity.
  • Complete Installation Package: The kit includes everything necessary for a seamless installation, making it suitable for professional mechanics and DIY enthusiasts alike.

Applications:

  • Designed for BMW S50B32 Engines, perfect for high-performance builds, competitive racing, or enhanced street driving.
  • Ideal for naturally aspirated engine setups aiming for maximum output and responsiveness.

Technical Specifications:

  • Bore Size: 87mm, optimized for the S50B32 platform.
  • Dome Volume: 5.2cc, engineered to enhance combustion efficiency and power output.
  • Material: High-strength forged aluminum for outstanding performance and durability.
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JE Piston - Corporate Logo
T#:33713158
Part#: 297180
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$ 1,324.99 USD
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The JE Pistons BMW S50B30US 9:1 KIT is designed specifically for turbocharged or supercharged BMW 3.0L S50B30US engines. Featuring a lower 9:1 compression ratio, it provides increased reliability under high boost. Forged 2618 Aluminum construction delivers exceptional strength and heat resistance. Precision CNC machining ensures optimal fit and performance. Lightweight design enhances engine efficiency and response. This kit includes six pistons, wrist pins, locks, and rings, making it a great option for high-power forced induction builds.
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JE Piston - Corporate Logo
T#:33713113
Part#: 289078
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$ 1,324.99 USD
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JE Pistons Set of 6 – 86.5mm Bore (-5.2cc Dome) – BMW S50B32 Euro Kit Upgrade your BMW S50B32 Euro engine with this set of 6 JE forged aluminum pistons. Designed for high performance and durability, these pistons feature: 86.5mm Bore: Stock size for optimal fit and performance. -5.2cc Dome Volume: Tailored for ideal compression and combustion efficiency. High-Compression: Enhances power and torque for naturally aspirated setups. Forged Aluminum: Lightweight, strong, and built to withstand high-stress environments. Perfect for race or street applications, these pistons are engineered for seamless installation and maximum performance.
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JE Piston - Corporate Logo
T#:33612923
Part#: 345624
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$ 1,349.99 USD
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The JE Pistons for the BMW S50 engine are designed for enthusiasts aiming for enhanced performance and long-term reliability. Constructed from high-strength forged aluminum, these pistons are engineered to withstand the intense demands of the high-revving 3.0L inline-six. The lightweight design reduces rotational mass, improving both throttle response and overall engine efficiency. With precision-crafted dome profiles, these pistons optimize combustion efficiency, delivering more power and performance. Available with customizable compression ratios and advanced coatings, JE Pistons are perfect for high-horsepower builds, offering durability and top-tier performance on both the street and track.
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JE Piston - Corporate Logo
T#:33713116
Part#: 289190
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$ 1,324.99 USD
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Upgrade your BMW S50B32 Euro-spec engine with JE Pistons, crafted for ultimate durability and performance. This set of 6 forged aluminum pistons is designed to handle the extreme demands of high-revving engines, making it ideal for track or street applications. Bore Size: 86.5mm Maintains the stock bore size for the BMW S50B32 engine, ensuring optimal cylinder wall thickness and structural integrity while offering enhanced performance. Dome Volume: -5.2cc The negative dome volume helps fine-tune the compression ratio, ensuring ideal combustion chamber dynamics for improved power delivery and engine efficiency, especially in naturally aspirated setups. High-Compression Design This kit supports a high-compression ratio, perfect for increasing horsepower and torque in performance applications. It's built for engines that require extra power without compromising reliability. Forged Aluminum Construction JE Pistons are made from aerospace-grade forged aluminum, known for its high strength-to-weight ratio. This ensures superior durability, reduced reciprocating mass, and improved throttle response under high-stress conditions. Designed for BMW S50B32 Euro Engine Specifically engineered for the European-spec BMW S50B32 engine, these pistons fit perfectly into the OE architecture, providing seamless installation and compatibility with both stock and modified engine builds.
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JE Piston - Corporate Logo
T#:33713104
Part#: 345633
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$ 1,349.99 USD
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Bore Size: 87.0mm This refers to the diameter of each piston, slightly larger than the stock bore (which is typically 86.4mm). The increase in bore size slightly raises displacement and allows for better airflow and combustion, improving power potential. Dome Volume: -10.10cc The negative dome volume indicates that the piston has a dish shape, rather than a positive dome. This affects the engine's compression ratio and helps with fine-tuning cylinder pressures. A dished piston like this allows for higher performance at high RPM, while maintaining stability. Compression Ratio: 11.50:1 This high compression ratio is ideal for naturally aspirated performance applications, offering more power output by increasing the efficiency of the combustion process. A higher compression ratio helps the engine generate more horsepower and torque from the same displacement. Material: Forged aluminum JE Pistons are known for their high-quality forged aluminum construction. This offers better strength and durability under high stress and heat, making them suitable for high-performance and racing applications. Application: BMW S50B32 (Euro-Spec E36 M3) This kit is specific to the Euro version of the S50 engine, which differs slightly from the US-spec version in terms of displacement, power output, and other engine characteristics.
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JE Piston - Corporate Logo
T#:33713143
Part#: 297174
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$ 1,324.99 USD
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The JE Pistons BMW S52B32US 12.5KIT Set of 6 Pistons is a high-performance kit for the BMW 3.2L S52 engine. It features a 12.5:1 compression ratio, forged 2618 aluminum construction for strength and durability, and a lightweight design for improved throttle response. Precision CNC machining ensures a perfect fit, and the advanced coating reduces friction and wear. Ideal for racing or high-performance street builds, this kit includes six pistons, wrist pins, locks, and rings for a complete installation.
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JE Piston - Corporate Logo
T#:33713115
Part#: 289079
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$ 1,324.99 USD
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JE Pistons Set of 6 – BMW S50B32 Euro Kit (87.00mm Bore) Upgrade your BMW S50B32 Euro-spec engine with this set of 6 JE Pistons, engineered for high performance and durability. 87.00mm Bore: Larger bore size boosts displacement for increased power output. Forged Aluminum: Lightweight and strong, designed to handle extreme conditions and reduce wear. Precision Fit: Optimized for naturally aspirated builds, delivering improved combustion and efficiency. Ideal for enthusiasts seeking more horsepower and reliability, this piston kit ensures your engine performs at its peak, whether on the street or track.
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JE Piston - Corporate Logo
T#:33846577
Part#: 289078S
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$ 299.99 USD
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BMW S50B32 EURO Kit - Single Unit

Elevate your BMW S50B32 engine performance with the S50B32 EURO Kit, expertly designed for enthusiasts seeking to unlock the full potential of their engine. This high-performance kit is tailored specifically for the S50B32, known for its impressive power and engineering excellence. With this kit, you can experience enhanced horsepower, improved throttle response, and increased overall efficiency, making it ideal for both street and track applications.

Key Features:

  • Performance-Oriented Design: Each component in the S50B32 EURO Kit is crafted to improve engine output and efficiency, ensuring that you get the most out of your S50B32 engine.
  • Increased Horsepower and Torque: This kit is engineered to maximize power gains, allowing for greater acceleration and a more exhilarating driving experience.
  • Precision Fitment: Every part is manufactured to high standards, ensuring a perfect fit within your engine bay. This precision engineering minimizes installation time and enhances reliability.
  • Optimized Throttle Response: Experience quicker acceleration and sharper throttle response, enabling a more engaging and spirited driving experience.
  • Comprehensive Kit: The kit includes all necessary components for a complete upgrade, making it an excellent choice for both professionals and DIY enthusiasts looking to enhance their vehicle.

Applications:

  • Designed for BMW S50B32 Engines, perfect for high-performance builds, track-focused cars, or those looking to enhance their street-driven vehicles.
  • Suitable for a wide range of applications, from competitive motorsport to everyday driving.

Technical Specifications:

  • Compatibility: Tailored for the S50B32 engine platform.
  • Expected Performance Gains: Significant increases in horsepower and torque, translating to a more responsive and powerful engine.
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JE Piston - Corporate Logo
T#:33612895
Part#: 367879
In Stock at Vendor
$ 1,674.99 USD
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JE Pistons for the N55 engine are high-performance forged pistons designed for BMW’s single-turbo 3.0L inline-six. Built for strength and durability under high boost, they feature optimized crown shapes and valve reliefs for better combustion. The lightweight design reduces rotational mass, improving throttle response and efficiency. With options for compression ratios and coatings, these pistons are perfect for tuning and motorsport use, delivering reliable performance on the street or track.
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JE Piston - Corporate Logo
T#:33612896
Part#: 367880
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$ 1,674.99 USD
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JE Pistons for the N55 engine are high-performance forged pistons designed for BMW’s single-turbo 3.0L inline-six. Built for strength and durability under high boost, they feature optimized crown shapes and valve reliefs for better combustion. The lightweight design reduces rotational mass, improving throttle response and efficiency. With options for compression ratios and coatings, these pistons are perfect for tuning and motorsport use, delivering reliable performance on the street or track.
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JE Piston - Corporate Logo
T#:33612887
Part#: 389618
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$ 1,722.99 USD
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The JE Pistons for the B58 engine are high-performance forged pistons designed for BMW's 3.0L inline-six turbocharged engine. These pistons are built with aerospace-grade materials, offering superior strength and durability under extreme conditions. They feature precision-machined surfaces, optimized for high boost applications, reduced friction, and enhanced thermal management. JE Pistons are known for their lightweight design, which improves engine response, while maintaining reliability for both street and track use. Customizable options for compression ratios and coatings are often available to suit specific performance goals.
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JE Piston - Corporate Logo
T#:33612902
Part#: 338097
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$ 1,649.99 USD
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JE Pistons for the N55 engine are precision-engineered for BMW’s single-turbo 3.0L inline-six. These forged pistons are built for high-performance applications, offering exceptional strength and durability under extreme conditions. Designed to handle high boost pressures and increased power, they feature optimized crown shapes and valve reliefs to improve combustion efficiency. Their lightweight construction reduces rotational mass, enhancing throttle response and engine efficiency. With customizable options for compression ratios and coatings, JE Pistons are ideal for tuning and motorsport setups, ensuring reliable performance in both street and track environments.
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JE Piston - Corporate Logo
T#:33646299
Part#: 297170S
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$ 299.99 USD
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JE Pistons BMW S52B32 USA Piston – 86.50 mm Bore – 1.220 in. CH, -25.10 CC is an exceptional choice for BMW enthusiasts seeking to boost their engine's performance. Offered by Turner Motorsport, this high-quality piston is specifically engineered for the BMW S52B32 engine, ensuring a precise fit and enhanced reliability. Its optimized design significantly increases compression, resulting in improved horsepower and torque for both racing and daily driving.

  • Increases compression ratio for better power output
  • Lightweight construction enhances overall engine performance
  • Designed for durability and longevity in high-stress environments
  • Ensures a perfect fit for the BMW S52B32 engine
  • Ideal for both competitive racing and everyday driving scenarios
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CP Carrillo - Corporate Logo
T#:48367042
Part#: CPFPSM54B25848.5
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$ 1,399.99 USD
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CP Carrillo offers arguably the highest qulaity pistons on the market for BMWs, engineered for maximum power and durability. Utilizing high-strength, lightweight materials and advanced engineering and design to ensure they are the perfect choice for any M54B25 engine and application, from street to track use.
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JE Piston - Corporate Logo
T#:33612886
Part#: 389617
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$ 1,722.99 USD
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The JE Pistons for the B58 engine are high-performance forged pistons designed for BMW's 3.0L inline-six turbocharged engine. These pistons are built with aerospace-grade materials, offering superior strength and durability under extreme conditions. They feature precision-machined surfaces, optimized for high boost applications, reduced friction, and enhanced thermal management. JE Pistons are known for their lightweight design, which improves engine response, while maintaining reliability for both street and track use. Customizable options for compression ratios and coatings are often available to suit specific performance goals.
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CP Carrillo - Corporate Logo
T#:28770023
Part#: SC7510
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$ 885.99 USD
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Upgrade the engine performance of your Mini R53 with the MINI R53 CP Forged Piston & Ring Set (Set Of 4) - 77mm (standard Size). This set of high-quality forged pistons and rings is designed to deliver superior durability and performance, ensuring optimal engine power and reliability.

  • Enhances engine performance
  • Provides superior durability
  • Ensures optimal engine power and reliability
  • Includes a set of 4 pistons and rings
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JE Piston - Corporate Logo
T#:33679694
Part#: 297173S
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$ 299.99 USD
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The JE Pistons BMW S52B32 USA Piston – Compression 11.5:1 - 87.00 mm Bore – 1.220 in. CH, -9.90 CC is a premium piston upgrade designed for BMW performance enthusiasts who seek to improve their engine’s power and reliability. Engineered with precision, this piston offers an ideal balance of strength and lightweight construction, ensuring optimal performance under high stress. Available through Turner Motorsport, this piston is specifically tailored for BMW S52 engines, providing a seamless fit for enhanced engine efficiency.
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JE Piston - Corporate Logo
T#:33679716
Part#: 297182S
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$ 299.99 USD
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JE Pistons BMW S50B30 USA Piston - 11.5:1 Compression – 86.50 mm Bore – 1.291 in. CH, -9.30 CC is an exceptional performance upgrade designed for BMW enthusiasts seeking increased engine power and reliability. Specifically built for the S50B30 engine, these high-compression pistons are engineered to deliver enhanced horsepower and torque, perfect for both track and street performance. Available through Turner Motorsport, these pistons offer unmatched durability and precision, ensuring your BMW operates at peak efficiency.
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JE Piston - Corporate Logo
T#:33646279
Part#: 297116S
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$ 299.99 USD
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JE Pistons are premium forged components tailored for racing and high-performance engines. Detail: 87.50 mm Bore – 1.271 in. CH, -30.00 CC
JE Piston - Corporate Logo
T#:33646335
Part#: 345629
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$ 1,349.99 USD
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The BMW S50B32 Euro pistons are forged aluminum, designed for high strength and lightweight performance. With an 86.4 mm bore and a 11.3:1 compression ratio, they ensure efficient combustion. The piston crown shape is optimized for airflow and high RPMs, contributing to the engine’s 321 hp output. The kit includes high-quality piston rings for excellent sealing and minimal friction. Bore Diameter: 87.00 Oil Ring Thickness: 0.111 Piston Volume: -26.00
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JE Piston - Corporate Logo
T#:33512916
Part#: 371714
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$ 1,749.99 USD
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92.00/.827/3.6cc JE Pistons BMW S65B40