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Karbonius E46 M3 CSL (S54) Carbon Airbox - Gloss Finish
The ultimate intake upgrade for the E46 M3!
CSL Carbon Door Panel Insert Set 1x1 Weave - Gloss Finish
Swap your OEM door Panels for Carbon Fiber!
S65 Carbon Inlet Plenum And Intake System
Complete Carbon fiber intake plenum and intake elbow
Karbonius M3 E46 CSL Trunk Lid - Matte Inner w/ Primed Exterior
Reduce Unnecessary Weight!
Karbonius G82 M4 Carbon CSL Trunk Lid ( Primed / Matte 4x4 Carbon)
Ideal for street performance builds or full track-ready setups
E46 Coupe CF Race Door With Frame (Pair) - Matte Interior & Varnish Exterior Finish
Drastically Reduce Weight for the track!
Karbonius Composites is a world-class manufacturer of premium carbon fiber components, specializing in high-performance upgrades for BMW and other European sports cars. With a dedication to precision engineering and superior craftsmanship, Karbonius has built a reputation for producing lightweight, high-strength carbon fiber hoods, airboxes, interior trim, and aerodynamic enhancements. Every Karbonius product is meticulously handcrafted in Spain using aerospace-grade carbon fiber and advanced manufacturing techniques to ensure exceptional fitment, durability, and a flawless finish. Designed for both street and track applications, Karbonius carbon fiber parts provide weight savings, improved aerodynamics, and a race-inspired aesthetic. Explore the full range of Karbonius Composites products available at ECS Tuning to elevate your vehicle's performance and style.