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BenzUnited Parts

C63s C63 M177 OEM+ Cold Air Intake Spacer Upgrade Kit

C63s C63 M177 OEM+ Cold Air Intake Spacer Upgrade Kit

Regular price $325.00 USD
Regular price Sale price $325.00 USD
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Factory M177 airboxes are efficient—but the low filter position and restrictive OEM paper elements limit airflow consistency. This complete intake system combines the M177 Intake Spacer Kit with BMC high-flow performance filters to improve breathing, response, and airflow efficiency while retaining a clean OEM appearance.

One system. One install. Noticeably better airflow.

Why This Intake System Works

  • Raised Filter Position: Intake spacers lift the air filters to reduce restriction caused by the factory airbox geometry.
  • High-Flow Filtration: BMC multi-layer cotton filters flow more air than OEM paper elements while maintaining excellent filtration.
  • Balanced Airflow: Improves consistency across both banks for smoother throttle response and repeatable performance.
  • OEM+ Design: Retains factory airboxes, engine covers, and noise levels.

Performance Expectations

This intake system is designed to improve airflow efficiency and throttle response, not chase exaggerated dyno numbers. Gains are modest on a stock vehicle but more noticeable on tuned M177 platforms.

  • Sharper throttle response
  • Improved mid–high RPM airflow consistency
  • Better performance repeatability under heat

What’s Included

Intake Spacer Kit

  • Precision CNC intake spacers
  • All required mounting hardware
  • Direct bolt-on installation

BMC Performance Filters

  • 2 × BMC high-flow panel air filters
  • Multi-layer oiled cotton media
  • Washable & reusable

Vehicle Fitment – M177 4.0L BiTurbo

Model Platform Years
C63 / C63 S AMG W205 2015–2021
GLC63 / GLC63 S AMG X253 2018–2021
G500 W463 2015–2017

Installation

  • Typical install time: 5 minutes
  • No tuning required
  • Uses factory mounting points

Ideal for daily-driven AMGs, track builds, and owners looking for stealth performance with OEM reliability.

Questions about fitment or tuning synergy? Email us for expert guidance.

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