Cold Air Intake Air Box Spacers and Hardware ( Without filters) For Mercedes Benz (2003-2007) M113K E55, CLS55, CL55, S55, SL55, G55

Maximize Supercharged Velocity: M113K Air Box Spacer & Hardware Kit

Who It’s For: Engineered for Mercedes AMG owners running the legendary M113K supercharged V8 powerplant who are tired of the stock air box choking out their performance.

The Symptom: The factory intake on the M113K is a notorious bottleneck. While the 5.4L supercharged engine is capable of massive power, the OEM air box lid sits extremely close to the filter surface, effectively shrouding the media and creating a high-pressure drop. This restrictive design forces the supercharger to work harder to pull air, leading to increased intake temperatures and a sluggish throttle response that makes this heavy-hitting chassis feel restrained during high-load highway pulls.

The Engineering Fix: This kit utilizes precision-machined spacers to lift the air box assembly, creating a larger internal plenum volume. By increasing the gap between the filter and the lid, we eliminate the factory shrouding and allow the engine to utilize the entire surface area of the filter. This reduces turbulence and straightens the airflow path into the supercharger inlets, resulting in over a 30% increase in airflow and a significant reduction in pumping losses, allowing for a sharper throttle snap and consistent power delivery.

Why Mechanics Choose This Kit

• Optimized Volumetric Efficiency: By reducing intake restriction, this kit allows the M113K to breathe naturally, supporting gains of up to 25 HP when paired with high-flow filters.
• Enhanced Supercharger Note: Relieving the intake restriction provides a more pronounced induction roar and supercharger whine under heavy acceleration without being obnoxious.
• Premium Hardware: Every kit includes high-quality aluminum brackets and German-made hardware, ensuring the spacers stay secure under the high-vibration environment of a high-torque V8.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2003-2006 Mercedes AMG E55
• 2003-2006 Mercedes AMG S55
• 2003-2006 Mercedes AMG CL55
• 2006-2007 Mercedes AMG CLS55
• 2003-2007 Mercedes AMG SL55
• 2005-2011 Mercedes AMG G55

Interchange Part Numbers:

UPD-CAIK-M113K, CAIK-HW-ONLY

The Performance Promise

Buy with confidence. This kit is designed for enthusiasts who want to maintain the sleeper OEM look while extracting maximum performance from the M113K engine. Backed by real automotive experts and fast shipping.