The turbocharger oil supply line is one of the most common failure points on N14 and N18-equipped R5X MINIs. Responsible for delivering a steady stream of pressurized oil to the turbocharger’s center housing (CHRA), this line keeps the turbo’s bearings properly cooled and lubricated. Unfortunately, its location directly alongside the exhaust manifold and catalytic converter exposes it to extreme heat. Over time, this heat causes the oil inside the line to harden or “coke,” creating a permanent restriction that starves the turbo of vital lubrication.

MINI attempted to address this issue by adding a retrofit heat shield to N14 models, but the problem continues to plague MINI owners. Furthermore, the OEM banjo bolts rely on copper crush washers that become brittle and warp under heat, leading to persistent oil leaks at the back of the engine.

To eliminate these issues, ECS developed a high-performance replacement for the factory turbocharger oil feed line (11657534454). Built from premium stainless steel braided -4 AN hose and engineered to withstand the harsh thermal environment of the N14/N18 engine bay, this upgrade ensures consistent, dependable oil delivery. A PTFE inner lining provides exceptional chemical and temperature resistance, while black zinc–coated fittings and banjo bolts offer improved corrosion protection and long-term sealing. The result is a durable, leak-free solution that outperforms the factory design in every way.

Features:

-4 AN stainless steel braided hose eliminates the OE swivel fittings for superior sealing and consistent oil flow

PTFE inner lining delivers outstanding chemical and temperature resistance

Black-anodized aluminum AN fittings offer improved durability and a refined appearance

Black zinc–coated banjo bolts resist corrosion for a long-lasting repair

Includes four new crush washers to ensure proper sealing during installation

Whether you're fixing an oil leak or performing preventative maintenance, choose the ECS upgraded turbocharger oil feed line for lasting durability and leak-proof performance.

Because of where the stock boost hose is located - often leaks go unnoticed. Replace your stock hose that is prone to failure with this 4ply Fluorosilicone hose that is better suited to handle the pressures, temperatures, and withstand total failure caused by oil. Couplers are CNC machined. Following instructions is necessary - if installed incorrectly, the hose will seem too short for its application.

This product fits the following BMWs:
2006-2012 E90 335d

Upgrade Your MINI with M7 Speed's High-Performance Fresh Air System!

Looking for an affordable yet high-performance fresh air system for your 2007-2016 R55-R61 Turbocharged MINI Cooper? Look no further than M7 Speed's MAXX-FLO™ low restriction intake system. Engineered for easy installation and unparalleled performance, this system is the ultimate solution for MINI enthusiasts.

Features:

• Super Easy Installation: Say goodbye to complex installations. M7 Speed has engineered a system that's a breeze to install, saving you time and hassle.
• C.A.R.B. Listed: Our MAXX-FLO™ intake system is C.A.R.B. listed, ensuring compliance with emissions standards while maximizing airflow for optimal performance.
• Turbo Heat Shield: Protect your Gen 2 MINI from damage caused by radiant heat from the turbocharger with the M7 Tuning Turbo Heat Shield. Not only does it safeguard your engine, but it also adds a sleek, finished look to your compartment.
• Vacuum Line Relocator Kit: Included in the bundle is an exclusive vacuum line relocator kit. Say goodbye to unsightly OE lines as you configure a new routing, keeping them out of sight for a cleaner visual appearance.

Bundle Includes:

• M7 Speed MAXX-FLO™ Air Intake System with a Red Pleated filter and silicone Elbow
• M7 Speed Turbo Heat Shield with thermal insulation
• M7 Speed Vacuum Line Relocator Kit for improved open-hood visual appearance

Both kits come complete with all necessary installation hardware and easy-to-follow instructions, ensuring a hassle-free upgrade experience.

About M7 Speed:

As the world leader in MINI Cooper adventure motoring, overlanding, and ultimate performance products, M7 Speed is committed to exceptional customer service and product innovation. Based in Mooresville, North Carolina—known as Race City USA—our focus is on engineering and producing high-quality, easy-to-install aftermarket performance products.

Choose between red (56-315102) or black (56-315101) and elevate your MINI driving experience today! Access Secret Premium Dashboard