Biturbo Cold Air Intake Spacer Kit For Mercedes Benz (2011 -2017) E63,CLS63, S63, G63, SL63,GL63 CL63 with 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:

• 2012–2015 Mercedes-Benz E63 AMG
• 2012–2014 Mercedes-Benz CLS63 AMG
• 2012–2017 Mercedes-Benz S63 AMG (Sedan, 4MATIC, and M157 Variations)
• 2013–2018 Mercedes-Benz G63 AMG
• 2013–2016 Mercedes-Benz GL63 AMG
• 2013–2016 Mercedes-Benz SL63 AMG
• 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.