Bosch S63 EU5 High-Flow Fuel Injector Kit (OEM BMW M5 Injectors)

Perfect Fit for High-Horsepower S55 & N55 Builds | 1000whp Gasoline / 800whp E85 Support

Upgrade your BMW’s fueling system with these OEM Bosch High-Flow Direct Injection (DI) Injectors, originally engineered for the BMW M5 with the EU5 S63 engine. These injectors represent the highest-flowing model within the Bosch family compatible with S55 and N55 platforms—making them the top choice for high-performance, flex-fuel, and full E85 builds.

💨 Power Capabilities

• Up to 1000 WHP on E0 Gasoline

• Up to 800 WHP on E85

✔ Compatible with most aftermarket High Pressure Fuel Pump (HPFP) systems
✔ Widely supported by experienced tuners across the BMW community

⚠️ Tuning & Coding Required

These injectors require proper calibration to function correctly:

• ISTA injector coding is mandatory

• Custom tuning is essential for safe operation and performance gains

📦 Kit Contents

• 6x Bosch S63 EU5 OEM Fuel Injectors

• 6x BMW Decoupling Elements (Vibration Dampers)

🔧 Fitment Compatibility

These injectors are a direct mechanical fit for the following S55 and 2013+ N55 models equipped with the Bosch HPFP:

✅ Supported BMW Models:

F-Chassis:

• F80 M3 – All Variants

• F82 M4 – All Variants

• F87 M2

• F20/F21 – M135i, M135xi

• F22/F23 – M235i, M235xi

• F30/F31/F34 – 335i, 335xi

• F32/F33/F36 – 435i, 435xi

• F10/F11 – 535i, 535xi *

• F25/F26 – X3/X4 35i *

• F15/F16 – X5/X6 35i *

E-Chassis (2013+ only):

• E8X – 135i *

• E9X – 335i *

• E84 – X1 35i *

• E70/E71 – X5/X6 35i *

🟡 Only compatible with 2013+ N55 models equipped with factory Bosch HPFP
🔴 NOT compatible with 2011–2012 N55 vehicles

✅ Why Choose These Injectors?

• OEM Bosch Quality – Trusted reliability from the factory M5 platform

• Proven Performance – Used in countless high-boost S55 builds

• Plug-and-Play Fitment – Direct mechanical drop-in for N55/S55

• Supports Flex Fuel – Ideal for E85 builds with proper tuning

📣 Ready to Fuel More Power?

If you're pushing the limits of your S55 or N55 engine, these OEM S63 EU5 injectors are the proven solution to meet your fueling demands without compromise.