G80 M3 J Style Carbon Fiber Side Skirt Extensions M3 test pipes 12-16ft-lb (Stock Tune)Turbo Inlet Area

12-16ft-lb (Stock Tune)Turbo Inlet Area Increased up to 160%Filtration Area Increased up to 40%

Available for all production dates (Single sided & DPK belts)

4 Series F36 Gran Coupe 428iX Gran Coupe (N20)

Note for 2018+ G chassis vehicles with the digital dash layout we have not yet added in the JB4 commands to allow in-dash control but will provide those via a free firmware update once developed

Max gains of 16 hp and 12 ft-lbs of torque at the wheels (stock software)

G80 M3 J Style Carbon Fiber Side Skirt Extensions M3 test pipes 12-16ft-lb (Stock Tune)Turbo Inlet AreaUpgrade the side profile of your G8x M3 M4 with a set of J Style Carbon Fiber Side Skirt Extensions! Fitment: 2021+ G80 M3 2x2 Carbon Fiber Weave High Gloss UV Clear Coat Professional Installation Recommended