The Karbonius E46 M3 CSL Carbon Door Panel Insert Set transforms the interior of any E46 Coupe with one of the most sought-after cabin upgrades on the platform. Inspired by the iconic CSL interior style, this four-panel kit replaces the factory door panels — front and rear — with precision carbon fiber inserts that elevate the visual character of the cabin while delivering a significant weight reduction.

Weighing just 1,740 grams for the complete set, the panels are manufactured from 100% prepreg carbon fiber and autoclave-cured in Spain under ISO 9001 quality management standards. The high-gloss varnish finish accentuates the carbon fiber weave and provides UV protection, giving the panels a premium, show-quality appearance. Installation is straightforward — the basic panel structure is shared between the standard Coupe and CSL, and the kit includes all necessary brackets and hardware.

Each piece is individually numbered to guarantee authenticity and origin.

What's Included

• 2 carbon fiber front door panel inserts
• 2 carbon fiber rear panel inserts
• Screws and 4 carbon installation brackets
• Karbonius numbered certificate of authenticity

Product Details

• Complete set: 1,740 g
• 100% prepreg carbon fiber construction
• Autoclave-cured for superior finish and structural stability
• High-gloss varnish finish with UV protection
• All installation hardware included
• Individually numbered for authenticity
• 2-Year manufacturer warranty

Vehicle Applications

• BMW E46 M3 Coupe
• BMW E46 M3 CSL
• BMW E46 3-Series Coupe

Installation Note

Installation instructions and panel templates are available from Karbonius: Installation Instructions (PDF) and Panel Templates (PDF — print on 11×17 at 100% scale).

Important Notes

• Front CSL door handles are available separately — see the Karbonius E46 M3 CSL Door Handle Set

Recommended Upgrades

• Karbonius E46 M3 CSL Door Handle Set
• Karbonius E46 M3 CSL Carbon Center Console (LHD)
• Karbonius E46 M3 CSL Carbon Rear Seat Console

Notes

• Designed and manufactured in Spain by Karbonius Composites under ISO 9001 standards
• Professional installation recommended