BMW 4 Series M4 G82 KB Style Carbon Fiber Spoiler (2021+)

KB Style Carbon Fiber Spoiler for BMW M4 (G82, 2021+)

Pre-preg dry carbon fiber spoiler in KB styling for the G82 M4. An aggressive profile that sharpens the rear end and improves high-speed stability, mounted with an adhesive-backed fit engineered to sit flush against the factory trunk for a clean, OEM-level look.

Build

• Material: 100% pre-preg vacuum-dried carbon fiber for a strong, lightweight build
• Weave: Refined 2x2 twill pattern with distinctive texture
• Finish: High-gloss UV clear coat that resists fading for lasting shine
• Weight: Lightweight construction that adds minimal mass
• Style: KB-inspired profile that complements the G82's rear lines

Design & Aerodynamics

• Enhanced Downforce: Optimized profile increases rear-end stability at speed
• Improved Handling: Added downforce supports cornering confidence and dynamics
• Reduced Lift: Aerodynamic profile helps minimize rear lift for better stability
• Aggressive Stance: Sculpted spoiler sharpens the rear-end appearance

Fitment

• 2021+ BMW M4 Coupe (G82)
• 2021+ BMW M4 Competition Coupe (G82)

Package Contents

• 1 x KB Style Carbon Fiber Spoiler

Installation

Adhesive installation using pre-applied automotive tape, so no drilling or permanent modifications are required. Most installs take around 1–2 hours plus curing time, using basic hand tools; thorough cleaning and degreasing of the surface is required for optimal adhesion. Intermediate to advanced skill level; professional installation is highly recommended, since carbon fiber requires careful handling and precise alignment for the best fitment and finish.

Before You Install

Please inspect the spoiler and confirm the carbon weave, finish, and fitment before installation. This spoiler is backed by a 1-year warranty against manufacturing defects. If you have a fitment question, contact us with your year and model and we'll help confirm compatibility.