The intake boot is a regular issue especially for BMW's, nearly all vehicles have a boot manufactured from rubber with an accordion section in the design for flexibility. This flexible section is typically where the failure comes from, leading to vacuum leak engine codes, rough idle, and increase fuel consumption. 

When you upgrade to a Turner silicone intake boot you get a perfect fit that will not only outlast the OE design (meaning any vacuum leaks and rough idle), while also smoothing out airflow within the intake tract. This boot also eliminates the factory intake resonator giving your engine a much more aggressive sound under the hood especially at higher rpm. Available in black or Turner blue color, our intake boot offers either a pop of color or a cohesive, complementary look in your engine bay.

The Turner Motorsport silicone intake boot is manufactured with 5 layers of wire reinforced silicone to prevent collapse under load. Engineered in-house utilizing 3D scanning technology, this boot offers perfect fitment with the factory air box and either single stage or three stage (high output N52) intake manifolds.

Install as a standalone reliability improvement or in addition to our three stage intake manifold and Turner performance tune (available here).

Replaces OE intake boot 13717536004.

Features:

• 5 layers of wire reinforced silicone
• Perfect fitment with factory airbox
• Compatible with single stage or three stage manifold
• Installation hardware included

This item fits the following BMWs:
2008-2013 E82 E88 BMW 128i Coupe Convertible
2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi - Sedan
2007-2011 E91 BMW 325i 325xi 328i 328xi - Touring Wagon
2007-2013 E92 BMW 328i 328xi - Coupe
2007-2013 E93 BMW 328i - Convertible

Unlock the full potential of your turbocharged N54 or N55 engine with the Turner Motorsport Stepped Intercooler. Whether you're running higher boost, track days, or just spirited street driving, this direct-fit upgrade is engineered to dramatically reduce intake air temperatures (IATs) and improve charge air flow for consistent, reliable performance.

Cooler air is denser air, and that means more oxygen per cycle for better combustion and more power. The factory intercooler quickly becomes a bottleneck under increased load or in warm conditions. Turner’s stepped intercooler solves that by offering an 80% increase in frontal surface area and cross-sectional flow, helping your BMW stay cooler and pull harder.

Constructed with high-quality cast aluminum end tanks and a bar-and-plate core, this intercooler delivers superior cooling efficiency and reduced pressure drop, even under sustained high-boost operation. The black powder-coated finish offers a clean, stealthy appearance, while the etched Turner logos add just the right touch of motorsport style.

Perfect for:
E82/E88 135i, E9X 335i/335xi, E84 X135i, E89 Z4 35i/35is

Key Features:

Direct-fit upgrade for E chassis N54 & N55 engines
Durable cast aluminum end tanks
High-efficiency bar-and-plate design
80% increase in frontal and cross-sectional area vs. stock
90% increase in charge air volume
Substantially lower IATs for improved power and reliability
Reduced and more consistent pressure drop
Lightweight design (under 20 lbs)
Dimensions: 520mm wide × 210mm tall × 130mm deep
Stealth black finish with Turner-etched logos
If you're looking to push your turbo BMW harder, the Turner Motorsport Stepped Intercooler is the cooling solution that keeps your engine running strong—pull after pull.

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.

Silicone Coupler - Straight 3" ID (76.20mm) x 3" L

No matter the project, ECS Tuning silicone couplers and elbows offer a high-quality, precision-engineered solution to your needs. Whether you're installing an intercooler, fabricating a custom intake system, or whatever else you can dream up, ECS Tuning has you covered.

• High-quality silicone construction for durability
• Precision-engineered design ensures a perfect fit
• Versatile solution for various automotive projects
• Enhances performance and reliability
• Compatible with BMW and other vehicles

All of the tuning in the world is only as good as the weakest link. More boost in your 135/335 is great! But you will soon learn that some of the factory hardware is not up to the task of handling that extra pressure. One of the first things to fail and cause a boost leak are the factory boost diverter valves. This allows boost to "leak" out of the intake stream and a loss of power from the engine. This ECS Tuning chargepipe upgrade includes a blow-off valve in place of the factory diverter valves. The BOV is higher quality than the diverter valves and will exit intake air to the outside instead of putting it back through the turbo system (which will reduce strain on the turbos). This aluminum chargepipe is also much more robust than the stock plastic factory pipe and the connection to the throttle body is stronger, eliminating another failure point of the stock pipe.

Built-in 1/8" NPT ports allow you to run an additional methanol injection kit (bungs included if you don't want use the ports).

This is a complete kit that includes everything you need to replace the factory chargepipe and diverter valves -

powedercoat chargepipe ECS Tuning blow-off valve Includes three interchangeable BOV springs, allowing you to tailor venting function to your existing modifications. 1.9 (For use with factory software) 2.0 (Pre-installed in the SQV BOV - suitable for stock or "Stage One" software) 2.2 (Suitable for "Stage Two" software) vacuum plugs for the stock diverter valve hoses silicone hose connection to intercooler piping all hardware and hose clamps with instructions

Upgrade your N54/N55 performance effortlessly with this "OEM+" Intercooler from ECS Tuning! This premium intercooler is engineered to deliver superior cooling efficiency and increased horsepower without the hassle of extensive bumper/core support modifications.

Key Features:

Enhanced Core Depth: Featuring a robust aluminum bar and plate core, this intercooler ensures optimal heat dissipation for peak performance. Durable Construction: TIG-welded cast aluminum end tanks provide unmatched durability, replacing the factory's plastic components. Perfect Fitment: Designed to fit just like the OEM unit, it requires no additional brackets or modifications to the bumper or core support. Compatibility: Works seamlessly with OE charge pipes and pipe connectors for easy installation. Benefits:

Improved Cooling Efficiency: Significantly lowers intercooler outlet temperatures, ensuring your engine runs cooler and more efficiently. Increased Durability: Aluminum end tanks offer enhanced durability and longevity compared to factory plastic construction. Hassle-Free Installation: No need for trimming the front bumper or modifying the radiator support, making installation straightforward. Whether you're after increased performance or an OEM purist, the ECS Tuning OEM+ Intercooler is the perfect upgrade for your BMW. Enjoy the benefits of increased horsepower and lower temperatures with an easy, hassle-free installation.

This dual-cone intake for the 135/335/535 is similar to the enclosed carbon fiber intake but without the surrounding air box. If you love the look of the open filters and high-tech carbon fiber, this is the kit for you. High-flow cotton air filters connect to CAD engineered carbon fiber intake tubes for an improvement in air flow. The open filter layout releases more intake roar than the stock muffled intake.

135/335/535 ECS open DCI intake features -

• Designed and engineered using CAD technology for optimal flow and fitment
• Washable/reusable high flow cotton filters (pre-oiled)
• Stainless steel hardware
• Direct replacement for stock air box; integrates seamlessly with stock intake piping
• Beautiful and functional carbon fiber/e-fiberglass construction

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

If you already have the ECS open cone filter for you N54 car then this is the perfect add-on upgrade for your system to really clean up the engine bay and keep your cone filters much cleaner. When you upgrade to the enlcosed filter kit your filters will be surrounded more more consistent cold air and by protecting the filter from engine bay dirt you are reducing the risk of air flow problems from build up.

The ECS Kohlefaser Luft-Technik (Carbon Fiber Air Technology) intake for the 135/335/535 is a beautifully crafted dual-cone intake with a glossy carbon fiber enclosure. Developed in-house using ECS's chassis dyno and state of the art laser scanning and 3D CAD technology, the N54 carbon airbox is a direct replacement for the stock system. Laser scanning allows ECS to produce a finished product that is a perfect fit to the engine bay. All tubing is also made from carbon fiber with each piece designed for optimal flow. The carbon fiber sandwiches a special heat-blocking fiberglass core, insulating the air box from engine bay heat. All of this combines to produce more power and torque over a wider RPM range - up to 13ft-lbs and 18hp when combined with a Cobb software tune, FMIC, and exhaust. And it looks amazing every time you open the hood.

Features:

• Designed and engineered using CAD technology for optimal flow and fitment
• Stainless steel hardware
• Direct replacement for stock air box; integrates seamlessly with stock intake piping
• Beautiful and functional carbon fiber/e-fiberglass construction

3" To 2.5" Silicone Coupler 3" Length

Enhance the performance and durability of your BMW or MINI with the 3" To 2.5" Silicone Coupler 3" Length. This silicone coupler provides a reliable connection between components, ensuring optimal airflow and reducing the risk of leaks. Engineered for durability and heat resistance, it withstands high temperatures and harsh conditions. Upgrade your BMW or MINI with this premium silicone coupler for improved performance.

• Reliable connection for optimal airflow
• Reduces the risk of leaks for enhanced performance
• Engineered for durability and heat resistance
• Fits both BMW and MINI models