BMW E90/E91/E92 335d Twin-Turbo Reinforced Silicone Boost Hose Kit – Upgraded Charge Air Pipe Replacement | Replaces Part No. 11617812274, 11618506786

Restore boost pressure, charge air flow, and long-term reliability with this reinforced silicone Twin-Turbo Boost Hose Kit for the BMW 335d. Designed as an upgraded replacement for the factory charge air pipe setup, this kit helps strengthen one of the most failure-prone areas of the intake and boost system on the twin-turbo diesel platform.

On aging factory boost hoses, repeated heat cycles, oil vapor, pressure changes, and constant turbocharger load can cause the original rubber hoses to soften, swell, crack, or eventually split under boost. When that happens, the vehicle can experience boost leaks, reduced power, poor throttle response, fault codes, limp mode, and inconsistent turbo performance. Replacing worn factory hoses with reinforced silicone is a smart upgrade for both reliability and performance-minded preventative maintenance.

This upgraded hose kit is designed to provide a stronger and more durable alternative to the original charge air hoses. The reinforced silicone construction is built to better handle boost pressure, engine bay heat, and long-term stress compared to aging factory-style rubber hoses. It helps maintain a tighter, more dependable sealed charge air path between the twin-turbo system and the intake tract, supporting more consistent airflow and pressure delivery.

Whether you are fixing an existing boost leak, replacing weak original hoses, or proactively upgrading the charge air system before failure occurs, this reinforced silicone kit helps restore confidence in the turbo system while improving long-term durability in a critical high-pressure area of the engine bay.

Key Features:

• Reinforced Silicone Construction: Built for improved durability and better long-term resistance to heat, pressure, and hose fatigue compared to aging factory rubber hoses.
• Twin-Turbo Boost System Upgrade: Designed specifically for the 335d twin-turbo diesel charge air system.
• Helps Restore Proper Boost Pressure: Supports a tighter sealed charge air path for more consistent turbo response and airflow delivery.
• Helps Prevent Boost Leaks: Replacing worn or weakened hoses can help reduce the risk of pressure loss, limp mode, and reduced performance.
• Upgraded Charge Air Pipe Replacement: A stronger replacement solution for common factory hose failure points.
• Ideal for Repairs and Preventative Maintenance: A smart upgrade when addressing boost leaks or refreshing an aging turbo intake system.

FITMENT:

• BMW 3 Series – E90 Sedan
• BMW 3 Series – E91 Touring
• BMW 3 Series – E92 Coupe

Compatible with BMW 335d twin-turbo diesel models using this boost hose / charge air pipe configuration. If you’re unsure whether this kit fits your specific vehicle, please contact us with your VIN and we’ll be happy to verify compatibility before you order.

REPLACES PART NO.: 11617812274, 11618506786

Please refer to the “Fitment” section in the product description for compatibility details.