BenzUnited Parts
M157 AMG Intake Filter Spacer Kit – OEM Airbox Airflow Upgrade (5.5L BiTurbo)
M157 AMG Intake Filter Spacer Kit – OEM Airbox Airflow Upgrade (5.5L BiTurbo)
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Let your 5.5L AMG V8 breathe the way it should.
This OEM+ Intake Kit for the M157 (5.5L BiTurbo AMG) combines CNC-machined intake filter spacers with BMC high-flow performance air filters to eliminate a known restriction inside the factory airbox—improving airflow efficiency, throttle response, and midrange pull without changing the look of your engine bay.
Complete kit • No tune required • OEM airbox retained
🔥 OEM+ Intake Kit — Features & Real-World Benefits
- High-flow BMC performance filters: Multi-layer oiled cotton media flows more air than OEM paper elements while maintaining excellent filtration.
- CNC-machined intake spacers: Raise the filters to reduce restriction at the airbox lid and increase effective inlet area.
- Improved airflow efficiency: Smoother, more consistent airflow under load for better drivability.
- OEM engine cover friendly: Retains factory fitment and a stock-clean appearance—ideal for sleeper builds.
- Precision aluminum construction: Heat-stable, corrosion-resistant, and engineered specifically for M157 airboxes.
This kit is designed as a complete airflow solution—filters and spacers engineered to work together inside the OEM airbox.
📈 What You’ll Feel in Real Driving
- Sharper throttle response
- Smoother power delivery in Comfort and Sport modes
- Improved consistency during repeated pulls
- More airflow headroom for tuned M157 setups
No tuning required. Fully compatible with stock ECU mapping.
🔬 Why This OEM+ Intake Kit Works
From the factory, the M157 airbox creates a pressure drop where the filter seals against the lid. This OEM+ intake kit addresses that restriction from both sides: higher-flow BMC filters and raised filter positioning via spacers. The result is reduced turbulence, improved airflow efficiency, and more consistent performance under load.
✔️ Vehicle Compatibility — M157 5.5L BiTurbo AMG
Fits Mercedes-Benz models equipped with the M157 5.5L BiTurbo V8:
| Model | Trim | Years |
|---|---|---|
| S-Class (W221) | S 63 AMG | 2011–2013 |
| S-Class (W222) | S 63 AMG | 2013–2017 |
| CLS-Class (W218) | CLS 63 / CLS 63 S | 2012–2018 |
| E-Class (W212) | E 63 / E 63 S | 2012–2016 |
| G-Class (W463) | G 63 AMG | 2013–2018 |
| GL / GLS-Class | 63 AMG | 2012–2019 |
🧰 Installation
- Bolt-on, fully reversible
- Uses factory mounting points
- Typical install time: ~20–30 minutes
📦 What’s Included in the Kit
- (2) CNC-machined aluminum intake spacers
- (2) BMC high-flow performance drop-in air filters
- All required mounting hardware
- Digital installation guide
🏁 Why Choose BenzUnited?
We design, test, and daily-drive AMG platforms. If a part doesn’t deliver real-world improvement, we don’t sell it. This kit follows our OEM-plus philosophy—clean installs, repeatable gains, and factory-level reliability.
