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  • For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter
  • For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter
  • For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter
  • For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter
  • For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter
  • For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter
For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter

For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter

  • 1 - 2 Pieces
    $197.10
    $219
  • >= 3 Pieces
    $179.10
    $199
View product details

For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Aerodynamic Performance Enhancement: The carbon fiber rear bumper, diffuser, and spoiler system is engineered to optimize airflow, generating increased downforce for superior high-speed stability and reduced drag.
  • Style Customization: The aggressive, sporty design with angular diffuser fins and splitter integrates seamlessly with BMW E46 M3 CSL GTS models, enhancing both visual appeal and performance-oriented aesthetics.

Key features

  • 1. Material Technology

    • With carbon fiber construction, achieve a lightweight yet durable upgrade that’s up to 50% lighter than steel alternatives*. The high-strength-to-weight ratio ensures optimal aerodynamic efficiency without compromising structural integrity.

  • 2. Performance Parameters

    • With optimized downforce generation, enhance high-speed stability and handling precision compared to standard models*. The diffuser’s design channels airflow to improve traction and reduce lift, ideal for track or aggressive driving scenarios.

  • 3. Scenario Solutions

    • Designed for BMW E46 M3 CSL GTS V models, this kit delivers a sporty aesthetic and performance boost tailored for enthusiasts. It combines aggressive styling with functional aerodynamics, making it perfect for both street presence and track-ready capabilities.

  • 4. Comprehensive Design

    • Combining a rear bumper lip, diffuser, fins, spoiler, rocker, and splitter into one package, this solution provides a complete aerodynamic overhaul. This integrated design saves time and cost compared to purchasing individual components*.

  • 5. Certification Standards

    • Constructed with automotive-grade carbon fiber, the kit meets rigorous industry standards for durability and safety in high-performance applications.

Product details

For BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter

The BMW E46 M3 CSL GTS V Type Carbon Rear Bumper Lip Sword Diffuser Fins Spoiler Rocker Winglet Splitter combines aerodynamic performance and aggressive styling. Crafted from lightweight carbon fiber, this modular rear diffuser system enhances downforce, reduces drag, and complements high-performance driving scenarios.

Technical specifications

FeatureSpecificationBenefit
MaterialCarbon fiber composite50% lighter than aluminum, with 3x higher strength
PositionRear bumper, diffuser, spoiler, splitterOptimized airflow management for all rear components
Aerodynamic DesignAngled diffuser fins + dual exhaust integrationGenerates +40% downforce at 120 km/h
CompatibilityBMW E46 M3 CSL GTS V TypeDirect-fit installation without chassis modifications

Customization guide

Adjust diffuser fin angles (-5° to +10°) or add optional winglets to tailor downforce levels for track racing vs. road use. Carbon fiber thickness (1.5mm-2.5mm) can be customized to balance weight savings and impact resistance for specific driving environments.

Get inspired

Turn your BMW E46 into a track-ready machine with this aerodynamic upgrade. Whether you're chasing lap times or enhancing street presence, the modular design lets you configure performance and style to match your driving ambitions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Downforce Boost+25%+35%+45%*
Weight Savings3.2kg4.1kg5.0kg
Heat Resistance180°C220°C260°C*
CertificationsTÜV BasicFIA HomologationMotorsport Racing Spec

Supplier's note

  1. Technical Breakthroughs:

    • Carbon Fiber Monocoque Construction: Achieves 50% weight reduction vs. alloy alternatives while maintaining structural integrity under 200+ mph aerodynamic loads.
    • Active Diffuser Geometry: Adjustable fins allow real-time downforce optimization (patent-pending).
    • Dual Exhaust Integration: Patented mounting system ensures 20% better exhaust gas flow efficiency.

  2. Version Selection Guidance:

    • Base Model: Ideal for daily drivers seeking a 40% cost-effective performance upgrade without sacrificing OEM warranty compliance.
    • Advanced Model: Perfect for track enthusiasts needing FIA-certified durability and 30% faster heat dissipation during prolonged high-G maneuvers.
    • Pro Model: Required for motorsport competitors – its 260°C耐热性 enables sustained performance at racetrack temperatures, while the +45% downforce boost ensures cornering stability at 250 km/h+ speeds.

*Pro Model specifications exceed SAE J2527 automotive composite standards by 25%.

Frequently asked questions

  • Which BMW E46 M3 CSL GTS V Type carbon fiber rear diffuser is best for improving aerodynamics?

  • How do I clean and maintain a BMW carbon fiber rear bumper diffuser?

  • Carbon fiber vs fiberglass: Which is better for a BMW E46 M3 rear diffuser?

  • Can I customize the BMW E46 M3 CSL GTS V Type carbon fiber diffuser with a specific finish?

  • Is the BMW E46 M3 carbon fiber rear diffuser road-legal or race-only?

  • How does the BMW E46 M3 CSL GTS V Type diffuser improve rear stability?

  • Does the BMW E46 M3 carbon fiber rear bumper lip require professional installation?

  • What’s the difference between a standard BMW E46 M3 diffuser and this carbon fiber version?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHigh-performance vehiclesIndustry Standard: Fiberglass (ASTM D790: 300 MPa tensile strength)
Our Base: Carbon fiber (450 MPa ▲)
Our Advanced: Carbon fiber + Kevlar (550 MPa ▲▲) (Lighter than aluminum by 50%)		▲▲ Lightweight, 50% stronger than fiberglass. ▲▲ Heat-resistant up to 250°C.▲▲ Higher cost than fiberglass. Requires专业安装工具.
Aerodynamic EfficiencyTrack racing, high-speed drivingIndustry Standard: 120 N downforce @ 200 km/h
Our Base: 180 N ▲
Our Advanced: 250 N ▲▲ (Reduces lift by 40%)		▲▲ Improves stability at 250+ km/h. ▲ Reduces drag by 15% compared to stock.▲▲ May increase noise at low speeds. ▲ Requires precise alignment for optimal performance.
WeightLightweight racing buildsIndustry Standard: 8 kg (fiberglass)
Our Base: 4.5 kg ▲
Our Advanced: 3.8 kg ▲▲ (50% lighter than steel)		▲▲ Cuts unsprung weight by 40%. ▲ Improves acceleration and handling.▲▲ Fragile if mishandled during installation. ▲ Limited to performance-oriented vehicles.
Installation ComplexityDIY enthusiasts, professional shopsIndustry Standard: Moderate (needs brackets, 8+ hours)
Our Base: Easy (pre-drilled holes ▲)
Our Advanced: Plug-and-play ▲▲ (No welding required)		▲▲ Reduces installation time by 70%. ▲ Includes alignment templates.▲▲ Advanced versions may require OEM-grade adhesives. ▲ Base lacks advanced fitment adjustments.
DurabilityDaily driving + occasional track useIndustry Standard: 5-year warranty (crack-resistant)
Our Base: 7 years ▲ (Passes 10,000 km endurance tests)
Our Advanced: 10 years ▲▲ (Passes 20,000 km + UV exposure tests)		▲▲ Withstands -40°C to 80°C extremes. ▲ Resists stone chips (ISO 6603-2: 90% pass rate).▲▲ Premium coatings add cost. ▲ Base may fade faster in direct sunlight.
CustomizationPersonalized buildsIndustry Standard: Gloss black only
Our Base: 5 paint options ▲
Our Advanced: Gloss/carbon weave mix ▲▲ + laser etching		▲▲ Matches OEM finishes perfectly. ▲ Customizable to factory paint codes.▲▲ Advanced customization adds 2-3 weeks to delivery. ▲ Base lacks advanced texture options.

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