BMW G22 G23 4 Series Carbon Fiber Rear Diffuser with Side Extensions

Transform the rear appearance of your BMW G22/G23 4 Series with the GSC TUNING carbon fiber rear diffuser package.

Designed for enthusiasts who demand a more aggressive and performance-inspired look, this rear diffuser combines a motorsport-style center diffuser design with extended side corner pieces to create a wider and lower visual stance. The aerodynamic shape enhances the rear bumper appearance while perfectly matching the original BMW body lines.

Manufactured using premium carbon fiber materials, this diffuser features a high-gloss UV-resistant clear coating that showcases the unique carbon weave pattern while providing excellent durability and long-lasting shine.

The integrated side extensions add extra depth and aggression to the rear profile, creating a complete carbon fiber upgrade appearance. The precise molding process ensures a factory-like fitment and seamless installation.

Perfectly matched with GSC carbon fiber front lips, side skirts, spoilers, and mirror covers for a complete aerodynamic exterior package.

Professional installation is recommended for the best fit and finish.

PRODUCT SPECIFICATION

• 
  Material: Premium Carbon Fiber
  
• 
  Finish: High Gloss UV Clear Coat
  
• 
  Carbon Weave: 2×2 Twill Carbon Fiber
  
• 
  Product Type: Rear Diffuser + Side Extensions
  
• 
  Position: Rear Bumper Lower Section
  
• 
  Design: Motorsport Aerodynamic Style
  
• 
  Features: Extended Side Wing Design + Aggressive Rear Styling
  
• 
  Fitment: OEM Style Replacement / Upgrade Fit
  
• 
  Installation: Bolt-on Installation
  
• 
  Package Includes: Rear Diffuser + Left & Right Side Extensions
  
• 
  Installation: Professional Installation Recommended
  

COMPATIBILITY

Fits:

• 
  BMW G22 4 Series Coupe (2021+)
  
• 
  BMW G23 4 Series Convertible (2021+)
  

Compatible Models:

• 
  BMW 420i G22/G23
  
• 
  BMW 430i G22/G23
  
• 
  BMW M440i G22/G23
  

Designed for BMW G22/G23 factory rear bumper configurations.

Please confirm your vehicle rear bumper style before ordering.

WHAT'S IN THE BOX?

• 
  1 × Carbon Fiber Rear Diffuser
  
• 
  1 × Left Carbon Fiber Side Extension
  
• 
  1 × Right Carbon Fiber Side Extension
  
• 
  Installation Accessories