Elevate your BMW project with ECS Tuning silicone couplers and elbows, providing a high-quality, precision-engineered solution for various applications. Whether you're installing an intercooler, fabricating a custom intake system, or pursuing other automotive projects, ECS Tuning delivers reliable performance and durability. Trust ECS Tuning to meet your needs and enhance your BMW project.

• High-quality silicone couplers and elbows for BMW projects
• Precision-engineered for reliability and performance
• Versatile solution for intercooler installations, custom intake systems, and more
• Ensures durability and longevity for your automotive projects

Brake Booster Check Valve by Rein is an essential part of your vehicle’s braking system, designed to maintain proper vacuum pressure for enhanced brake performance. This valve ensures that the brake booster retains sufficient vacuum pressure to deliver consistent, responsive braking, even in challenging conditions. Built from durable, high-quality materials, the Brake Booster Check Valve by Rein is engineered to withstand high temperatures and provide long-lasting reliability. Available at Turner Motorsport, this check valve is a direct fit replacement, ensuring easy installation and compatibility with your vehicle’s OEM specifications.

• Maintains optimal vacuum pressure, ensuring consistent brake performance
• Improves braking response, enhancing safety and vehicle control
• Constructed from high-quality materials for durability and long-term use
• Direct fit replacement, allowing for easy installation and perfect compatibility with OEM standards
• Supports the overall efficiency of the brake booster system, ensuring reliable braking in all conditions

Turner Motorsport offers the Brake Booster Check Valve by Rein as a dependable solution to enhance your vehicle's braking system, ensuring safe and efficient performance.

Since 1999, aFe (Advanced FLOW Engineering) has been developing and manufacturing high quality accessories in their facility in Corona, California. Starting with air filters and intake systems, and now expanding into exhaust systems, suspension components, tuning modules, and more, aFe products are a great way to improve the performance of your BMW without altering its fundamental character. Owned by a BMW enthusiast, aFe power is recognized the world over as a leader in quality performance products for your BMW.

This is a drop-in stock replacement aFe performance air filter that installs into your BMW's factory airbox. This particular filter fits the following BMWs:

E31 8 series: 840i 840ci 1991-1999
E32 7 series: 740i 740il 1993-1994
E34 5 series : 530i 530i Wagon 540i 1993-1995
E34: M5 1991-1993
E39: M5 2000-2003
E53 X5 : X5 4.4i 4.6is 4.8is
Z8 : Z8

This version has an oil-free filter media for less maintenance. For the best flowing filter, with the best performance gain, we always recommend the standard aFe "Pro5R " filter (which has a blue pre-oiled filter media), but this oil-free filter flows only slightly less than the blue Pro5R style aFe filter, and requires no re-oiling after cleaning the filter.

The plastic hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, mounting grommet, and hardware.

Fits the following BMWs:
2000-2003 E39 BMW 530i

Upgrade your BMW or MINI with the BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm). This high-quality silicone coupler is designed to provide a secure and leak-free connection for your vehicle's intake or cooling system. Engineered for durability and flexibility, it ensures optimal performance under various conditions. With its straight design and precise dimensions, this silicone coupler offers easy installation and a perfect fit for your BMW or MINI.

• Provides a secure and leak-free connection
• Engineered for durability and flexibility
• Straight design for easy installation
• Perfect fit for BMW and MINI vehicles

Transform the character of your E39 with the Luft-Technik Intake System from ECS Tuning.

ECS Tuning developed this intake with a focus on the E39's unique design challenges, particularly its one-of-a-kind factory airbox mount. By engineering a system specifically for this chassis, ECS ensures a precise, bolt-on fit that feels OEM while unlocking airflow the stock system leaves on the table.

At the core of the Luft-Technik system is a high-flow conical filter housed within a powder-coated aluminum heat shield, designed to seal against the hood and isolate the filter from engine bay heat. The result is a colder, denser air charge for improved combustion efficiency. A reinforced silicone intake elbow and precision-machined MAF housing maintain factory functionality while reducing turbulence, delivering smoother airflow straight into the engine.

The benefits are immediate: faster throttle response, a noticeable bump in induction volume, and a cleaner, more performance-oriented look under the hood. Pairing factory-style mounting points with premium materials like stainless-steel hardware, ECS created a system that not only performs but is built to withstand years of spirited driving.

For enthusiasts who want their inline-six to breathe freely and sound the part, the Luft-Technik Intake by ECS Tuning combines OE-level fitment with true performance engineering.

Key Features:

21% increase in flow over the stock intake
Seals to the hood for the largest and coldest air space.
Unrestricted airflow for maximum induction noise.
Retains full ASC function—no modifications needed.
Heat shield designed specifically for the E39, utilizing factory mounting locations to create a colder air pocket where the OEM inlet duct feeds.
5052 powder-coated aluminum heat shield for stiffness, corrosion resistance, and durability in demanding environments.
Black silicone intake elbow and coupler are compliant, high-temperature resistant, and designed to grip clamps securely through repeated heat cycles.
Retains the stock 3.0" MAF with no adapters required.
Designed to preserve the stock ICV hose.
Stainless-steel hardware included for long-term durability.
Fitment & Compatibility:

Tailored to the OBD2 M52B28 with ASC found in the BMW E39 528i.
Mounts directly to the factory frame rail with no modification required.
Designed to maximize available air space while retaining the OEM cold air inlet.
Kit Contents:

Heat Shield
Silicone ASC Throttle Body Boot
MAF Mount
Silicone MAF Coupler
Inlet/Air Filter Adapter
High-Flow ECS Conical Air Filter
E39-Specific Heat Shield Mount
Complete Installation Hardware

Product Development: The Luft-Technik Intake System was designed, engineered, tested, and quality inspected by ECS Tuning's Research and Development team. Their process incorporates industry-leading tools and methods, including FARO laser scanning for reverse engineering and quality assurance, SolidWorks 3D CAD modeling, in-house 3D printing for rapid prototyping, and rigorous long-term product testing. Performance data is validated using both a Mustang AWD 500 SE in-ground dyno and a Superflow SF-750 Flowbench to ensure precision and reliability.

Rein Crankcase Breather Valve | BMW E39 E52 S62 5.0L Engine is a high-quality replacement designed to address common crankcase ventilation issues in BMW engines. A failing breather valve can lead to excessive oil consumption, vacuum leaks, and even freezing in colder temperatures, causing performance issues and potential engine damage. This direct-fit replacement effectively regulates the removal of oil vapors, preventing system failures and ensuring smooth engine operation. For optimal results, it is recommended to replace all related oil separator components simultaneously.

• Prevents oil separator freezing and vacuum leaks in cold weather
• Ensures proper crankcase ventilation to avoid excessive oil consumption
• Direct-fit replacement for BMW E39 and E52 S62 5.0L engines
• Helps maintain optimal engine performance and efficiency
• Manufactured to meet or exceed OEM quality standards
• Recommended to replace with other oil separator components for long-term reliability

Bespoke. A word that perfectly encapsulates the mindset of Eventuri. Performance parts with an obsessive attention to detail and an unyielding dedication to quality. Perfectly designed to maximize the potential of each individual vehicle and meticulously refined through rigorous testing. Eventuri offers a product that stands in a class of its own and delivers outstanding power increases without making false claims or exaggerating dyno numbers. With patented designs such as a custom velocity stack filter housing and improved ducting that guides the flow of air into the engine, to the breathtaking uniformity of the weave pattern. These are performance products for the truly discerning customer.

When it comes to styling a vehicle the proper look is one that compliments not cheapens the inherent design. Race inspired carbon fiber completes the look and style of every BMW M-powered model and Eventuri delivers on an entirely new level. 

Made from 100% prepreg carbon fiber of the highest quality, the workmanship on the housing is second to none. This encapsulates the filter and is mated to an anodized aluminum inlet cowl to ensure a smooth inlet flow path. The filter itself is a deep pleated, high flow double cone configuration which is dry to avoid damaging the MAF sensor. Finally, the assembly is then mated to an aluminum heat shield which effectively shrouds the intake from engine bay heat and captures the ambient air being diverted from the scoop. Also, notice the rubber spacer on the mount of the heat shield - this is for the headlight module to sit on so that it remains at the right height - small details are important! 

100% Prepreg carbon fiber with a CNC machined collar - the air scoop forces ambient air directly into the filter opening. This scoop simply clicks into place in the front right-hand brake duct and effectively saturates the mouth of the intake with cold air. It has been designed to take up half the height of the duct in order to allow airflow to still continue through the duct for the brakes. The scoop is so effective that even after a hard drive, the aluminum cowl at the mouth of the intake will still feel cold to touch! 

Each intake system includes:

• Prepreg Carbon Fiber Venturi Housing
• High Flow Double Cone Air Filter
• Aluminum Cowl for smooth airflow entry
• Prepreg Carbon Fibre Intake Tube with integrated MAF Sensor Mount
• Prepreg carbon Fibre Air Scoop
• Laser Cut Intake Duct
• Laser Cut Stainless Steel Brackets
• High-quality Silicon couplers with BMW specification hose clamps

This part fits the following BMWs:
1998 - 2004 E39 M5

Crankcase Vent Valve - Rein - BMW E39 M5 E52 Z8 is a crucial component for maintaining proper crankcase ventilation and preventing harmful oil buildup in the engine. Over time, the vent valve can become clogged with oil, leading to excessive crankcase pressure, poor engine performance, and increased carbon deposits. A failing valve can result in rough idling, misfires, and blue smoke from the exhaust. Replacing the crankcase vent valve at regular intervals ensures optimal engine efficiency and longevity.

• Prevents oil-rich vapors from entering the intake system
• Reduces the risk of carbon buildup and engine misfires
• Direct-fit replacement for BMW E39 M5 and E52 Z8 models
• Ensures proper crankcase ventilation for optimal performance
• Helps eliminate excessive crankcase pressure and oil leaks
• Manufactured to meet or exceed OEM quality standards