K&N Air Filters for Mercedes M112 V6 C320 E320 CLK320 C240 - Set of 2

This isn’t just a replacement — it’s a proven performance upgrade for Mercedes-Benz M112 V6 engines. Each vehicle requires two filters, and this complete kit includes both K&N 33-2181 filters needed for a full replacement. Designed to increase airflow, restore lost horsepower, and sharpen throttle response, they also provide superior filtration and lifetime reusability.

📦 Mercedes M112 Air Filter Compatibility Chart

Kit includes 2 filters — complete replacement for one vehicle.

💡 Benefits of a K&N 33-2181 Kit for Mercedes M112 V6

• Performance Boost: Up to +5 hp with both filters installed
• Throttle Response: Quicker tip-in and stronger midrange pull
• Lifetime Value: Washable, reusable, backed by K&N’s Million Mile Warranty
• Maintenance Interval: Clean approximately every 15,000 miles under normal driving
• Direct Replacement: Fits the factory dual airbox — no modifications required

Want to know why drop-in filters outperform aftermarket cone setups? Read our full guide: Mercedes Intake Guide: Why Drop-In Filters Beat Cone Intakes.

🔧 Easy Installation Guide: Mercedes M112 Dual Airbox

1. Pull off the front engine cover.
2. Remove the front section of the intake housing.
3. Release the metal latch at the back where the airbox connects to the throttle body.
4. Flip the housing upside down and remove the Torx screws.
5. Swap in both new K&N 33-2181 filters (arrows facing airflow).
6. Reassemble and snap the housing + cover back in place.

Time: ~15 minutes with a Torx driver.

⚙️ Mercedes M112 Performance Upgrade Path

This filter kit is the foundation of a breathing package for the M112 V6. Pair it with the following upgrades for maximum results:

• X-Pipe Exhaust: Improves exhaust scavenging, midrange torque, and high-RPM horsepower while removing restrictive secondary cats.
• High-Flow Exhaust: Balanced flow adds response without harsh drone.
• ECU Tune: Optimizes fueling and ignition to unlock combined intake/exhaust gains.

🚀 Why Mercedes M112 Owners Choose This Kit

It’s more than a replacement — it’s the entry point into performance mods for the Mercedes M112 engine. Start with airflow, then add exhaust flow and tuning for a complete transformation.

📦 In stock and ships within 1 business day — backed by K&N’s Million Mile Warranty.