M156 ROW Airboxes – USDM AMG Intake Upgrade w/ MAF Sensors

Remove USDM Restrictions – Power, Sound, Throttle Response

Upgrade your M156 6.2L V8 AMG with ROW (Rest of World) Airboxes, designed to replace restrictive USDM factory units that include charcoal filters—a design used in regions with stricter emissions rules. A ROW airbox, common outside the US, features a less restrictive MAF profile, boosting airflow and performance. These C63 AMG airbox replacements deliver increased airflow, sharper throttle response, a deeper engine note, and up to 10-15 WHP gains. Includes new OEM-style MAF sensors for accurate readings and a plug-and-play install. Perfect for enthusiasts seeking a reliable OEM+ M156 performance airbox replacement kit.M156 Performance Upgrades Collection

🔧 Key Features for M156 AMG Upgrades

• Direct Replacement: Installs in place of factory airboxes—no tuning required
• Charcoal Filter Delete: Improves airflow vs. USDM stock units
• Performance Gains: +10-15 WHP for M156 AMG tuning upgrades, improved throttle response, smoother power delivery
• Enhanced Sound: Deeper, more aggressive engine tone under acceleration
• OEM-Style MAF Sensors Included: Reliable, factory-accurate readings

Why Upgrade Your M156 Airbox?

Upgrading your M156 airbox removes USDM limitations, unlocking 10-15 WHP and a richer sound for C63 AMG and E63 AMG models. A ROW airbox, tailored for non-US markets, ditches the restrictive charcoal filter for better airflow, making it a go-to M156 performance enhancement. Perfect for enthusiasts seeking a cost-effective upgrade.

✅ Compatible M156 AMG Models

For vehicles equipped with the naturally aspirated M156 6.2L V8.

M156 Airbox Fitment FAQ

• Q: How much horsepower will I gain? A: Expect 10–15 WHP with improved airflow and sound.
• Q: Can it affect my warranty? A: No, it’s a plug-and-play upgrade with OEM sensors.
• Q: Is it legal for street use? A: Yes, designed to comply with emissions standards.

BenzUnited Parts – Performance Upgrades That Work