E46 Coupe Roof

1.837,00  VAT not included

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Prices are expressed in euros and do not include shipping costs, taxes, or additional fees.

Product description

The Karbonius CSL Carbon Roof for BMW M3 E46 Coupe is one of the most effective modifications for reducing weight and improving the vehicle’s dynamic performance. Manufactured entirely from pre-impregnated carbon fiber (prepreg) and cured in an autoclave oven, it allows for weight reduction at the highest point of the bodywork, lowering the center of gravity and improving the vehicle’s response during weight transfers, braking, and cornering.

Each unit is produced at our facilities in A Coruña (Spain) under ISO 9001 quality standards and by highly specialized personnel, guaranteeing excellent finish quality, dimensional precision, and structural strength.

With an approximate weight of only 3.3 kg, it represents a reduction of over 5 kg compared to the original steel roof, achieving a dynamic benefit far superior to that of other equivalent weight modifications located in lower areas of the vehicle.

Despite its extreme lightness, the roof incorporates multiple layers of carbon fiber to ensure high structural strength. Its high-gloss finish with UV protection highlights the carbon weave and provides an appearance inspired by the legendary BMW M3 CSL.

Important: This product is a complete structural roof intended to replace the vehicle’s original panel. It is not a decorative sheet or a part to be adhered over the existing roof.

Manufactured in Plain Weave (1×1) fabric, it also incorporates integrated rain gutter anchors to facilitate professional installation.

Like all Karbonius parts, each unit is individually numbered and includes a certificate of authenticity.

Benefits of E46 Coupe Roof

 

  • Weight reduction of over 5 kg from the highest point of the vehicle.
  • Lowering of the center of gravity.
  • Improved dynamic performance and stability.
  • Aesthetics inspired by the BMW M3 CSL.
  • Manufactured entirely from prepreg carbon.
  • Excellent structural strength.
  • Premium finish with UV protection.
  • Complete replacement of the original roof.
  • Integrated rain gutter anchors.
  • Individually numbered exclusive part

 

 

Technical information and specifications

 

  • Application: BMW E46 Coupé
  • Material: 100% prepreg carbon fiber
  • Manufacturing process: Autoclave cured
  • Approximate weight: 3.3 kg
  • Approximate weight reduction: over 5 kg compared to the original roof
  • Finish: high-gloss exposed carbon with UV protection
  • Integrated rain gutter anchors
  • Complete structural part
  • Individually numbered part
  • Manufactured in: A Coruña, Spain
  • Quality certification: ISO 9001
  • Warranty: 3 years against manufacturing defects

 

Compatible:

  • BMW M3 E46 Coupe
  • BMW E46 Coupé

 

How to install the product

The roof is a structural component of the bodywork, and its replacement requires expertise in bodywork and structural bonding.

  • Installation difficulty: High.
  • Requires removal of the vehicle’s original roof.
  • Installation is recommended exclusively by specialized workshops.
  • May require adaptation, alignment, and finishing work during the assembly process.
  • It is advisable to perform all fitment checks before proceeding with final bonding or painting.
  • Installation must be carried out using appropriate procedures and adhesives for structural components.

Important: Although the part has been developed based on original BMW dimensions, as with any structural carbon component, minor adjustments may be necessary during installation.

Warnings

 

  • This product is a complete structural roof and not a decorative sheet to be adhered over the original roof.
  • Professional installation is essential due to the structural nature of the part.
  • Product primarily intended for sports vehicles, track days, competition, and lightweighting projects.
  • An exact OEM fit is not guaranteed on all vehicles.
  • Adaptation or alignment work may be necessary during assembly.
  • It is recommended to fully verify the fit before performing any painting or finishing work.
  • It is the customer’s responsibility to comply with current regulations in their country for the use of this type of component.
  • This product is not an OEM part, nor is it manufactured, approved, or sponsored by BMW AG.
  • Prices shown are in euros and do not include shipping costs, taxes, or applicable fees.
  • The indicated weights are approximate and may vary by around ±10%.

 

 

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