CSL Airbox
by Haimus Racing

These CSL airboxes are complex - the engineering & design expertise is not only for reliability, but also performance.

The Haimus Racing kit has visibly gone through many revisions to ultimately reach this current state of design.

My airbox was another step for Antonio as he introduced the Frozen matte finish: it's a beautiful piece of kit.

I documented every step and options an often misunderstood upgrade for the S5: buying the airbox is only half the way there.

I hope you find value here.

Matt / @m3_epoustouflant
My deep dive

Engineered for reliability & performance

In collaboration with Antonio, I detail my unboxing impressions and cover every little details on his CSL airbox design.

The transparency in his approach to design, and the unique performance & reliability features made this airbox my choice on The Phoenix build.

Read my build journal entry

The Specs

Flow optimized trumpets

They create more midrange power then any OEM CSL replica airbox from 3000 to 7500 rpm.

Threaded locked, CNC'ed fittings

All fittings are physically locked into the carbon housings with a thread and custom nut.

Repositioned IAT sensor

The IAT Sensor bung is placed closer to the front of the airbox compared to the OE design. This has been proven to avoid heat soak issues.

Finishing Options

You can spec your airbox in a combination of Gloss or Matte clear coat and stickers under the clear.

5 years structural warranty

The finish warranty varies from 3 to 5 years depending on your finishing specs.

Pre-Preg Carbon

Pre-preg carbon is used for its superior tensile strength & enables a thin walled construction for optimal sound.

The Snorkel
A simplified, no flap design in ABS plastic.
Spec your airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox
CSL Carbon Fiber Airbox

CSL Carbon Fiber Airbox

Regular price Sale price$1,929.00
/
  • Factory Direct Process

    Specifications

    Premium

     Premium Plus

    Clear Coat 4x layers 5x layers
    Finish Warranty 3 years 5 years
    Structural Warranty 5 years 5 years
    Finishing Extra
    • Polished. 
    • Matched weave pattern on bottom of airbox
    • Polished. 
    • Matched weave pattern on bottom of airbox
    • Extra action to remove any surface imperfections

    Required hardware

    When in doubt, use a checklist. The complete required and optional CSL airbox hardware list. 

    Tuning Options

    Understand the various OEM DMEs of the S54, how it affects your costs, and the related tuning hardware required.

    Don't want to run Alpha N tuning? You'll need the conversion kit below.

    MAP Conversion Kit for CSL AirBox

    Regular price$125.00
    /

    E46 M3 Budget CSL MAP Conversion 

    Same scaling as OEM CSL MAP. More info shortly. 

    Specifications: 

    • Made in the USA
    • Designed for CSL airbox installation 
    • Uses a new Bosch Sensor that matches the OEM CSL sensor scaling
    • Detailed instructions are provided

    Kit includes:

    • 1x Bosch Sensor
    • 1x T-Adapter 
    • 1x Sensor Connector (Harness)
    • 1x DME Connector
    • 1x Allen Bolt 
    • 1x Butt Connectors
    • 2x T-Connectors 
    • 2x Clamps
    Antonio @ Haimus Racing
    Made in Bulgaria

    Haimus Racing is a manufacturer focused on BMW M Clubsport components: products that can evolve on the track, and on the street.

    Need help?