M177 Intake Spacer Kit – OEM-Plus Airflow Upgrade for C63 / GLC63

Improve airflow, throttle response, and overall breathing efficiency with this M177 Intake Spacer Kit. Designed to raise the factory air filters and reduce intake restriction, this upgrade preserves the OEM appearance while delivering measurable performance gains on C63, C63 S, GLC63, GLC63 S, and G500 models.

Key Benefits

• Improved Intake Airflow: Raises factory filters to reduce restriction in the M177 airbox
• Sharper Throttle Response: Freer airflow improves mid-to-high RPM pull
• OEM-Plus Fit & Finish: Maintains factory alignment and engine bay appearance
• Filter Compatibility: Works with OEM, BMC, K&N, aFe, and other drop-in filters
• Complete Hardware Kit: Includes four CNC-machined spacers and mounting hardware
• Quick Installation: 20–30 minutes with basic tools — no tuning required

Vehicle Fitment – M177 4.0L Bi-Turbo

• C63 / C63 S AMG – W205 (2015–2021)
• GLC63 / GLC63 S AMG – X253 (2018–2021)
• G500 – W463 (2015–2017)

M177 Intake Spacer Kit – Subtle but Effective Airflow Upgrade

Ideal for daily-driven AMGs, track builds, and owners looking for factory-correct performance upgrades.