HGK BMW E46 Lexan (ThermoFormed) Window Set 4 mm

The E46 Lexan (ThermoFormed) Window Set is engineered for racing teams and performance enthusiasts seeking reliability and reduced vehicle weight. Manufactured from high-quality 4 mm polycarbonate sheet, it delivers exceptional impact resistance while maintaining outstanding optical clarity. Each panel is thermoformed to precisely replicate the curvature of the original OEM glass, ensuring an accurate and secure fit without compromise.

Protected with a UV-resistant coating, the set resists yellowing and discolouration even under intense sunlight and track conditions. Compared to standard glass of equal thickness, it offers an approximate 50 % reduction in weight—significantly enhancing handling, balance, and acceleration. This window kit represents a true fusion of advanced material science and motorsport-level manufacturing standards.

Key Features:

• Manufactured from premium 4 mm polycarbonate (Lexan/Makrolon)
• Provides approximately 50 % weight saving versus glass
• UV protected to prevent sunlight discolouration
• Precisely thermoformed to match OEM glass curvature for a perfect fit
• Ideal for motorsport, track, and lightweight performance builds