Description
The NRW-Design Billet Aluminum Spark Plug Tubes are precision-engineered replacements for the fragile OEM plastic tubes found in BMW’s S65 and S85 engines. Factory tubes are known to warp, crack, or loosen over time, allowing oil to seep into the spark plug wells—an issue that can cause misfires and poor ignition performance.
NRW Design eliminates these problems with a CNC-machined billet aluminum solution, offering a permanent fix and superior durability under both street and motorsport conditions. Each tube is meticulously machined from 6061-T6 aluminum, anodized for heat and corrosion resistance, and designed to maintain a consistent seal and secure fit throughout the life of the engine.
Whether you’re performing a full top-end rebuild or simply replacing leaking OEM tubes, NRW’s billet design ensures a precise fit, leak-free operation, and long-term reliability.
FITMENT
Fits the following BMW models equipped with S65 and S85 engines:
S65 Engine (BMW M3)
-
2008–2013 BMW M3 (E90 Sedan / E92 Coupe / E93 Convertible)
S85 Engine (BMW M5 & M6)
- 2006–2010 BMW M5 (E60)
- 2006–2010 BMW M6 (E63 Coupe / E64 Convertible)
KIT CONTENTS
- Complete Set of Billet Aluminum Spark Plug Tubes
- x8 Tubes for S65 V8 Engines
- x10 Tubes for S85 V10 Engines
KEY FEATURES
- Direct replacement for OEM plastic spark plug tubes
- CNC-machined from solid 6061-T6 billet aluminum
- Anodized for superior heat and corrosion resistance
- Prevents oil intrusion into spark plug wells
- Compatible with OEM and NRW valve cover gaskets
- Designed for long-term reliability under high-heat conditions
- Made in the USA by NRW Design
The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.
