Spool Performance M177 C63 E63 Methanol Couplers

The Spool Performance M177 Methanol Couplers are designed to provide a clean and practical solution for adding water-methanol injection to Mercedes-AMG C63 and E63 models equipped with the M177 engine. These silicone couplers feature integrated nozzle mounting provisions, allowing compatible water-methanol injection nozzles to be positioned directly within the charge-air system.

Constructed from durable, heat-resistant silicone, the couplers are designed to withstand the elevated temperatures associated with the engine's charge-air system. The integrated nozzle mounts are compatible with AEM nozzle holders, helping simplify installation while maintaining a clean and professional appearance.

The couplers feature a black exterior with a red inner lining and Spool Performance branding, providing a distinctive appearance that complements performance-oriented engine bay builds.

When used with a properly configured water-methanol injection system, the couplers can support charge-air cooling and increased knock resistance. Actual results depend on the complete injection system configuration, nozzle selection, tuning, and vehicle setup.

Key Features

• Designed for Mercedes-AMG C63 and E63 M177 applications
• Integrated water-methanol injection nozzle mounts
• Compatible with AEM nozzle holders
• Durable, heat-resistant silicone construction
• Black exterior with red inner lining
• Spool Performance branding
• Provides a clean solution for integrating water-methanol injection into the charge-air system
• Supports charge-air cooling when used with a properly configured injection system
• Can contribute to increased knock resistance as part of a properly tuned water-methanol setup

Optional Nozzle Kit

An optional nozzle kit is available and includes:

• 2 nozzle holders with check valves
• 2 × 250 cc/min jets
• 2 × 500 cc/min jets
• 2 × 1,000 cc/min jets

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.