This isn't just another generic "filter on a stick" or a brittle, 3D-printed prototype. This cold air intake was engineered from the ground up by true 35d enthusiasts who understand exactly what the BMW M57 engine needs. Designed specifically for the diesel X5, it delivers unmatched size, build quality, and real-world effectiveness.

By ditching the restrictive factory airbox, this system completely transforms your engine bay. It utilizes a massive, custom-fabricated aluminum shovel to scoop up dense, cold air and ram it directly into the largest high-flow cone filter that can physically fit under the hood. If you want to slash intake air temperatures (IATs), maximize your diesel's performance, and install the most comprehensive intake system on the market for your X5, Turner Motorsport has you covered.

Built from heavy-duty 12-gauge and 6061-T6 aluminum and wire-reinforced silicone, this durable setup is built to handle high diesel boost levels without breaking a sweat. Best of all, it backs up its rugged looks with a massive 38% increase in airflow over stock, ensuring your M57 engine gets all the air it needs to perform at its peak.

Features and Benefits:

Direct bolt-on
Largest fabricated air box on the market
Removable center duct for ease of engine bay access
Eliminates the restrictive factory airbox
Oversized, free-flowing cone air filter
Full cold-air intake ducting that utilizes both front passages instead of the single duct from the factory
38% increase in flow over factory intake with AFE panel filter (425CFM vs 308CFM at -10inH2O)
Comprehensive installation instructions
Design:

12 Gauge 5052 aluminum heat shield
Wire-reinforced fluoroelastomer silicone inlets
Powder coating for appearance and corrosion resistance
Black anodized 6061-T6 aluminum intake couplers
Dual front aluminum air ducts
70A durometer polyeurathane mounting grommets
9" Cone Filter
Kit Contents:

Main airbox
Front grille inlet ducts
Silicone turbo inlet
Silicone MAF tube
Billet air filter adapter
Air filter
Bulb seal
Hardware kit
Installation and Support:

- Click HERE for Installation Instructions -

Product Development:

Our E70 35d Intake was designed, engineered, tested, and quality-inspected by our Research and Development team at our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

Turner Motorsport Silicone PCV Hose for BMW M57

Upgrade your BMW M57 engine with our Silicone PCV Hose, a premium replacement for the fragile, failure-prone factory hose. Over time, the stock rubber hose deteriorates due to constant exposure to heat and oil, leading to cracks and leaks. Our solution? A high-quality silicone hose engineered for superior durability and long-term reliability.

To further enhance performance, we’ve lined the hose with fluorosilicone, providing exceptional resistance to oil and chemical degradation. Designed in-house using advanced CAD modeling and 3D scanning, this hose offers a precise OEM fit while eliminating the common weaknesses of rubber construction.

Each kit includes stainless steel hose clamps for a secure, hassle-free installation. Whether you’re replacing a worn-out PCV hose or upgrading for added peace of mind, this premium solution ensures your BMW M57 runs smoothly and efficiently for years to come.

Features:

Direct OEM Fit – Retains factory hose dimensions while eliminating reliability issues.
High-Performance Silicone – Resists heat-related wear for long-lasting durability.
4-Ply Fluorosilicone Lining – Superior protection against oil and chemical exposure.
Stainless Steel Clamps Included – Secure installation and extended service life.
Give your BMW M57 the reliability it deserves—upgrade to the Turner Motorsport Silicone PCV Hose today!

Universal High-Flow Air Filter

Give your engine the airflow it deserves with this reusable, high-performance air filter—perfect as a direct replacement for an ECS intake system or as the finishing touch for your custom intake project.
Dimensions: 4.5" Base OD • 6" Filter Height • 3.5" Top OD

Upgrade from your restrictive factory filter to an ECS Tuning High-Flow Dry Air Filter and let your engine breathe freely. Improved intake flow enhances power throughout the rev range while helping maintain efficient fuel economy.

Oiled vs. Dry Filters — Which Is Right for You?

Oiled Filters

Offer slightly higher airflow for maximum performance

Require more frequent cleaning

Must be re-oiled after each cleaning

Long-term reusable design saves money over disposable paper filters

Dry Filters

Provide excellent airflow with minimal maintenance

Easily cleaned with warm, soapy water—no oiling required

Still flow significantly better than OE paper filters

Fully reusable and cost-effective

Both versions deliver superior performance over stock filters while offering the long-term benefit of reusability. Choose the option that best fits your maintenance style and performance goals.

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

For optimal performance, consider the 46.5mm To 61.0mm Silicone Coupler.

Engineered with durability and functionality in mind, this silicone coupler provides a reliable connection for various components in your vehicle's intake or cooling system. Its smooth interior surface promotes efficient airflow, while its flexible and reinforced construction ensures a secure fit and prevents leaks. Enjoy hassle-free installation and enhanced performance with this premium silicone coupler.

• Durable silicone construction
• Smooth interior surface for efficient airflow
• Flexible and reinforced design prevents leaks
• Secure fit for reliable performance
• Hassle-free installation

ECS Silicone Coupler

Upgrade your BMW with the ECS Silicone Coupler. This straight 3 5/8" ID (92mm) x 3" L coupler is designed to enhance your vehicle's performance and durability. Crafted from high-quality silicone, it ensures long-lasting reliability and superior performance.

• Enhances vehicle performance
• Durable construction for long-lasting reliability
• Specifically designed for BMW vehicles