AutoTecknic Dry Carbon Versus Rear Diffuser - G80/ G81 M3 | G82/ G83 M4

Refine the rear profile of your G8X with the AutoTecknic Versus Rear Diffuser, engineered in full dry carbon fiber for a sharper, more aggressive finish. Designed to enhance both visual presence and airflow management, the Versus diffuser features a sculpted center fin layout with functional venting for a motorsport-inspired look.

Constructed using 100% pre-preg carbon fiber and autoclave-cured for maximum strength and consistency, this diffuser delivers lightweight performance with OEM-level fitment.

Key Features

• 100% Pre-Preg Dry Carbon Fiber
  
  • Autoclave-cured for superior strength, reduced weight, and consistent weave quality
    
• Versus Design with Center Venting
  
  • Aggressive fin layout enhances rear-end styling while maintaining a clean OEM+ aesthetic
    
• High-Gloss UV-Resistant Finish
  
  • Multi-layer clear coat for long-term durability and fade resistance
    
• OEM Fitment
  
  • Designed to mount directly to factory lower mounting points for a straightforward installation

Construction

• 2x2 Twill (3K) Carbon Fiber Weave
  
• Autoclave vacuum-formed process
  
• Precision-molded for accurate fitment
  
• Reinforced mounting tabs and clip locations

Installation

• Direct replacement for OEM rear diffuser section
  
• Utilizes factory mounting locations
  
• No modification required

Fitment

• BMW M3 (G80 / G81)
  
• BMW M4 (G82 / G83)

Notes

• Fits all model years of G8X M3 / M4 with OEM rear bumper
  
• Designed for vehicles retaining the factory exhaust layout

Why Dry Carbon

Pre-preg carbon fiber is widely regarded as the highest-quality construction method, using precisely controlled resin content and autoclave curing to produce a lighter, stronger, and more consistent final product with minimal imperfections.