BMW E46 M3 CSL Pre-Production Wehtje GmbH Carbon Fiber Airbox

Discover an exceptional piece of BMW M history: this pre-production prototype carbon airbox from Wehtje GmbH, developed for the legendary E46 M3 CSL. As one of the earliest examples produced during the CSL’s development phase, this airbox represents the genesis of the CSL’s iconic induction system and offers unparalleled rarity for collectors and concours-level restorations.

Key Features

• Pre-Production Wehtje GmbH Carbon Fiber Airbox: Rare, authentic component for E46 M3 CSL.

• Lightweight Construction: High-quality carbon fiber reduces overall engine bay weight.

• Enhanced Airflow: Optimized for the S54B32 engine to improve throttle response and performance.

• Collector & Motorsport Approved: Ideal for restoration projects, track builds, or display purposes.

• OEM Integration: Designed to fit the E46 M3 CSL engine bay with factory mounting points.

• Durable & Functional: High-strength carbon fiber resists heat and vibration, maintaining performance integrity.

Why Choose This Wehtje GmbH Carbon Fiber Airbox?

Rare Pre-Production Component – Highly collectible among BMW E46 M3 CSL enthusiasts.
OEM-Style Fitment – Direct replacement with no modification required.
Improved Performance – Optimized airflow enhances throttle response, sound, and engine efficiency.
Lightweight Carbon Fiber – Reduces engine bay mass for better handling and power-to-weight ratio.
Global Collector Demand – Sought-after by BMW CSL collectors in USA, UK, and France.

Compatibility

This Wehtje GmbH carbon fiber airbox fits:

• BMW E46 M3 CSL (2003–2005) – Pre-production and production S54B32 engines

• OEM mounting points for seamless installation

• Perfect for performance upgrades, restoration projects, or collector builds

Always verify your chassis, engine mounts, and air intake configuration before purchasing.

Technical Specifications

• Part Type: Carbon Fiber Airbox

• Material: Lightweight, high-strength carbon fiber

• Compatibility: BMW E46 M3 CSL S54B32 engine

• Condition: Pre-production, authentic, collector-grade, fully functional

• Weight: Optimized for CSL lightweight performance design

This BMW E46 M3 CSL Pre-Production Wehtje GmbH Carbon Fiber Airbox is a rare, lightweight, and high-performance component designed for collectors, performance enthusiasts, and restorers alike. With OEM-style fitment, enhanced airflow, and motorsport aesthetics, it preserves the authentic CSL character while improving throttle response and engine bay styling.