Biturbo Cold Air Intake Spacer Kit For Mercedes Benz (2011 -2017) E63 CLS63 S63 G63 SL63 GL63 CL63 M157 5.5L Engine

Optimize Volumetric Efficiency: M157 5.5L Biturbo High-Flow Intake Spacer System

Who It’s For: Engineered for Mercedes-Benz AMG owners running the high-output M157 5.5L Biturbo V8 powerplant who are looking to eliminate the air starvation issues caused by the factory airbox geometry.

The Symptom: The factory intake system on the M157 engine is designed with a heavy emphasis on noise suppression, which unfortunately creates a physical bottleneck. In the stock configuration, the air filters are positioned so low in the housing that only about 55% of the filter surface area is actually exposed to incoming air. This creates a significant pressure drop across the filter, forcing the twin turbochargers to work harder to maintain target boost levels, which leads to increased intake air temperatures and a noticeable lag in throttle response during aggressive maneuvers.

The Engineering Fix: This kit utilizes precision-machined aluminum spacers to physically elevate the air filters within the factory housing. By lifting the filter, we unlock 100% of the available surface area, allowing for a massive 30% increase in total airflow. This modification reduces the vacuum effect beneath the filter by up to 50%, straightening the airflow path and ensuring the M157 receives a denser, higher-velocity charge of oxygen. The result is a sharper torque curve and a significant reduction in the parasitic drag on the turbos, helping these heavy luxury performance chassis get moving with much less effort.

Why Mechanics Choose This Kit

• Measurable Power Gains: Provides a dyno-proven increase of 20–25 rear-wheel horsepower on stock vehicles, with even greater scaling for cars running Stage 1 or Stage 2 ECU calibrations.
• Enhanced Induction Acoustics: By removing the factory restrictions and lifting the filters, you get a much more pronounced biturbo spool sound under load without the drone of a full open-element system.
• Industrial Grade Materials: Constructed with anodized red aluminum brackets and spacers paired with German-manufactured stainless steel hardware to resist the high heat-soak environments common in the M157 engine bay.

Technical Specifications

Compatibility & OEM Reference

Fits the Following Vehicles:

• 2012–2016 Mercedes-Benz E63 AMG / E63 AMG S
• 2012–2017 Mercedes-Benz CLS63 AMG / CLS63 AMG S
• 2011–2017 Mercedes-Benz S63 AMG (Sedan, Coupe, 4MATIC, and M157 Variations)
• 2013–2017 Mercedes-Benz G63 AMG
• 2013–2016 Mercedes-Benz GL63 AMG
• 2013–2017 Mercedes-Benz SL63 AMG (2012 in non-US markets)
• 2011–2014 Mercedes-Benz CL63 AMG

Interchange Part Numbers:

M157, 5.5L Engine, Biturbo, E63, CLS63, S63, G63, SL63, GL63, CL63, M157-55-V8, Cold Air Intake Spacer Kit

The Performance Promise

Buy with confidence. This kit is designed to maintain a clean, factory-like appearance in your engine bay while delivering the airflow performance required for high-speed grand touring and track-day reliability. Backed by real automotive experts and fast shipping.

Common Questions

Will this intake spacer kit fit my 2011–2017 Mercedes-Benz AMG with the 5.5L Biturbo engine?
Yes, this kit is engineered specifically for 2011–2017 Mercedes-Benz AMG models equipped with the M157 5.5L Biturbo V8, including the E63, CLS63, S63, G63, SL63, GL63, and CL63.

Does this fit AMG models with other V8 engine platforms?
This spacer kit is built specifically for the factory airbox geometry on the M157 5.5L Biturbo V8 platform.

What is included in the kit?
The kit includes precision-machined anodized red aluminum brackets and spacers along with German-manufactured stainless steel mounting hardware.

How does elevating the air filters increase horsepower?
Lifting the filters within the factory airbox exposes 100% of the filter media instead of the stock 55%, increasing airflow by 30% and reducing under-filter restriction by up to 50% for gains of 20–25 rear-wheel horsepower.

Does this kit maintain the factory engine bay appearance?
Yes, the spacers and hardware install directly onto the factory airbox assembly so you keep a clean, stock-style engine bay appearance while gaining induction airflow and biturbo spool sound.