Full carbon fiber intake to increase flow, performance and aesthetics! Dual inlet design for maximized air flow while retaining the OEM+ fitment.

The most common N55 intake utilizes a short plastic tube and oversized cone filter; it is your job to have better taste than the common N55 owner. This carbon intake changes the whole image of the N55 engine while maintaining a flow of cool air and added induction noise. With a dual inlet design the engine bay retains its functionality while adding a second inlet to provide your engine with improved air flow and sound. To ensure the engine gets the coolest air possible the second inlet is located in the "sweet spot" on the cold side of the engine for the lowest intake air temps and most air flow possible. The cone filter features a bellmouth velocity stack filter that creates the satisfying flutter after letting of the throttle.

Our Turner Carbon Fiber Intakes start with a 3D scan of the factory intake and engine bay. Engineers use the 3D imaging of the chassis to design the intake in SolidWorks modeling software. Using a Flow Bench, the Intake is then airflow tested against the factory intake, to ensure optimal airflow improvement against stock. The final product is a beautiful and functional Carbon Fiber Intake, CAD designed for perfect integration with the OEM inlet ducting and stock mounting locations and proven to flow better than factory.

Key Benefits:

Increased flow over the factory intake
Carbon fiber airbox and intake tube with gloss clear coat for UV protection
CAD-Designed for perfect Integration
Custom high flow air filter specially designed to to pair with the carbon fiber airbox
Kit Contents:

Carbon Intake Tube
Full Carbon 2 Piece Airbox
Bellmouth Velocity Stack Cone Filter
Billet Turbo Inlet Adapter
Silicone Coupler
Hardware For Installation
Design:

- Carbon Fiber Intake Tube

Carbon inlet tube featuring a smoother interior without corrugations for a smooth flow path.
Integrated carbon flange allows secure mounting of the tube to the carbon air boxes.
Intake tube is manufactured using 2x2 twill weave carbon fiber for a great look in the engine bay.
Gloss finish clear coat for UV protection.
4-ply reinforced silicone coupler and 6061-T6 black anodized aluminum flange that utilizes the factory o-ring and retaining clip.
- Air Box

Carbon fiber airboxes are manufactured using 2X2 twill weave carbon fiber and protected with a gloss finish clear coat for UV resistance to match the intake tube.
Air box mounts in stock location with supplied hardware.
- Air Filter

Conical hi-flow reusable air filter; featuring 8 ply oiled cotton gauze construction to maximize filtration efficiency.
Bellmouth (velocity stack) filter flange inlet to reduce turbulence in order to maximize flow.
Product Development:

Turner N55 Intake System was designed, engineered, tested and quality inspected by our Research and Development team at Turner. Nothing but 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 modeling, rapid prototyping utilizing our in-house 3D printer and rigorous long term product testing. Performance data metrics are collected utilizing Mustang AWD 500 SE in ground dyno and in-house Superflow SF-750 Flowbench.

Fitment:

E82 135i N55
E88 135i N55
E84 X1 35i
E90 335/xi N55
E92 335/xi N55
E93 335/xi N55

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.

Bring out the sound of your turbo with the ECS Atmospheric Diverter Valve Spacer! The ECS DV Spacer gives your N20 the sound of a blow off valve (BOV) with every gear change and every boosted throttle close! The strategically engineered vent slots allow you to boost on without a CEL (Check Engine Light).

FEATURES:

Anodized Black 6061-T6 aluminum

Features 3 radial slots to let out the “woosh” with optimal flow for all OEM DV types

Engineered to operate CEL-FREE!

Alignment holes for ease of installation

Includes pre-installed, captured Viton O-rings, resistant to chemical degradation

Includes Zinc-plated alloy steel socket head cap screws

Tested for performance and durability

INSTALLATION:

Remove Diverter Valve
Place the spacer onto the DV flange r
Re-install your original DV solenoid atop the spacer with the included longer hardware.
The wastegate actuator must be swung out of the way for install. Loosen both screws retaining the wastegate actuator, then remove the one closest to the actuator, allowing the actuator to swing out of the way. This will allow for ease of 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

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

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

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