Performance Intake Spacer Kit – Fits Mercedes-Benz M278 & M157 Engines

Free up your V8’s breathing without changing the look. This CNC-machined Intake Filter Spacer Kit for M157 (5.5L Bi-Turbo AMG) and M278 (4.7L Bi-Turbo) eliminates airflow pinch points inside the airbox—delivering smoother airflow, sharper throttle response, stronger midrange torque, and measurable top-end efficiency.

🔥 Key Features

• Optimized Airflow: Spacer height and profile reduce the choke effect at the filter seal, improving inlet velocity and lowering pressure drop compared to stock or aftermarket stacks.
• Works with OEM & Aftermarket Filters: Seals properly with factory paper or high-flow performance elements.
• OEM Engine Cover Retention: Keeps a clean, near-factory bay appearance after install.
• Raw Aluminum Construction: CNC-machined for strength and heat stability. Corrosion resistant, ready to run raw or finish to taste.
• Optional Cerakote Finishes: Stealth black or custom colorways with logo engraving available on request.

📈 Real Benefits You’ll Feel

• Freer breathing = better combustion: Reduced restriction means turbos spool quicker with less effort.
• Sharper throttle response: More consistent airflow off-idle and through the midrange.
• Efficiency headroom: Complements ECU tunes, downpipes, and high-flow filters by removing a known bottleneck at the airbox lid.

✔️ Compatibility

*Not compatible with non-AMG or naturally aspirated V8 platforms. Confirm market/airbox version before ordering for G-chassis.

🧰 Installation & Notes

• Bolt-on: Installs at the airbox/filter interface—no cutting, trimming, or permanent modifications.
• Proper sealing: Designed to maintain OEM-style gasket seal around the filter perimeter.
• No tuning required: Works with stock MAF scaling. Pairs seamlessly with ECU tunes for maximum benefit.

📦 What’s Included

• (2) CNC-machined aluminum spacers (left/right airbox)
• Digital installation guide