HARD Motorsport - BMW E92 Abrasion Resistant Polycarbonate CUP Style Rear Windows - PAIR (E92RWINDWCUP) rb26 If you're using a Z31

If you're using a Z31 series VG30ET with it's mating transmission

creating fluctuations in suspension geometry that adversely affects everything from cornering to braking stability

E36 M3 models use 4 piston Wilwood calipers

BC RACING BR SERIES COILOVERS 17-UP HYUNDAI ELANTRA GT SPORT PD

HARD Motorsport - BMW E92 Abrasion Resistant Polycarbonate CUP Style Rear Windows - PAIR (E92RWINDWCUP) rb26 If you're using a Z31Keep your cabin air fresh during your stint with our CUP style rear polycarbonate, lightweight racing windows. Four rear venting slots have been added to our popular windows for improved air circulation and appearance. HIGH QUALITY MATERIALS: Abrasion resistant polycarbonate rear windows for your race car! A HUGE weight savings compared to the glass counter part. Provides excellent levels of protection against chemicals, UV yellowing, and hazing. This