AGT Shock 2011-2017 F25 F26 RWD X3 X4 MK2 Front/ Rear: Inverted Fork-Front Spring Rate: 7K205 B Rear Spring Rate: 8K215 B BMW-F30 3 Series-2012 (Rated for 950whp on 100%

(Rated for 950whp on 100% E85) and is drop in ready

If your M340i is equipped with an aftermarket downpipe

NOTE:  THE STOCK REAR IS SPRING

Catalytic converter efficiency check configurable (ON/OFF) for high flow downpipes (off-road use)

AGT Shock 2011-2017 F25 F26 RWD X3 X4 MK2 Front/ Rear: Inverted Fork-Front Spring Rate: 7K205 B Rear Spring Rate: 8K215 B BMW-F30 3 Series-2012 (Rated for 950whp on 100%AGT Shock 2011 2017 F25 F26 RWD X3 X4 MK2 Front Rear: Inverted Fork Front Spring Rate: 7K205 B Rear Spring Rate: 8K215 B AGT has more than 2000 square meters of factory buildings and various complete equipment. From research and development, design, production, and testing, we provide one stop professional inverted fork coilover customization services, we have a variety of types and complete specifications of springs, as well as a variety of damping