Performance Air Intake for BMW 135i 335i 535i (2006-2010) Turbo N54 Engine

Eliminate Intake Restriction and Hear Your Turbos Spool on the BMW N54

Who It’s For: Designed specifically for BMW enthusiasts running the legendary N54 twin-turbo inline-six engine who want to unlock power and that iconic turbo soundtrack.

The Problem: The factory airbox on the N54 is a massive, baffled plastic unit designed more for silence than for flow. As you increase boost with tuning, this stock box becomes a major bottleneck, struggling to supply the volume of air required by the twin TD03 turbos. It also completely muffles the sound of the turbos and the diverter valves.

The Solution: We engineered this Dual Cone Intake (DCI) kit to replace the restrictive factory assembly. By utilizing two high-flow cone filters directly on aluminum adapters, you provide the N54 with a massive increase in surface area for air ingestion, reducing pressure drop and allowing the turbos to breathe freely.

Why This is the Ultimate Upgrade

• Proven Performance Gains: Expect gains of up to 15+ HP on tuned applications by reducing the vacuum load on the turbo inlets.
• High-Flow Engineering: Includes two heavy-duty T-bolt clamps and precision-machined aluminum adapter pipes with a 57mm (2.25") ID for a secure, leak-free seal.
• True Performance Sound: This kit transforms the engine bay, making the turbo spool-up and the blow-off/diverter valve air release clearly audible from the driver’s seat.
• Direct Bolt-On: This is a complete kit. No cutting or permanent modification to your BMW is required; it replaces the factory airbox using basic hand tools.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2008-2010 BMW E82 Coupe 135i N54 Twin Turbo 3.0L
• 2008-2010 BMW E88 Convertible 135i N54 Twin Turbo 3.0L
• 2011 BMW E82 1M Twin Turbo 3.0L
• 2006-2010 BMW E90 Sedan 335i/335xi N54 Twin Turbo 3.0L
• 2006-2010 BMW E91 Touring 335i/335xi N54 Twin Turbo 3.0L
• 2006-2010 BMW E92 Coupe 335i/335xi N54 Twin Turbo 3.0L
• 2006-2010 BMW E93 Convertible 335i/335xi N54 Twin Turbo 3.0L
• 2011-2013 BMW E92 Coupe 335is N54 Twin Turbo 3.0L
• 2008-2009 BMW E60 Sedan 535i/535xi N54 Twin Turbo 3.0L
• 2008-2009 BMW E61 Touring 535i/535xi N54 Twin Turbo 3.0L
• 2009-2016 BMW E89 Z4 sDrive35i N54 Twin Turbo 3.0L
• 2010-2016 BMW E89 Z4 sDrive35is N54 Twin Turbo 3.0L

Interchange Part Numbers:

N54 DCI, 135i-INTAKE, 335i-INTAKE, 535i-INTAKE, Z4-N54-INTAKE, DUAL-CONE-N54, 57MM-TURBO-INTAKE

The Performance Promise

Buy with confidence. As N54 specialists, we know these cars are sensitive to airflow. This kit is designed to provide the volume required for everything from stock boost to aggressive Stage 2+ tunes. Backed by real automotive experts and fast shipping.