the Kies Bolt Lock is designed to bolt right up to your crank pulley/hub with ease

They have an anti-rotation feature that prevents the terminals from spinning when tightening the nuts

87 mm bore size for 3460 cc displacement

even in intense racing conditions

including the F20

ReFlex+ Advanced I/O Integration | BMW N55 200762 the Kies Bolt Lock isThe ReFlex+ Advanced I O Integration module is engineered for BMW N55 owners who want complete control over their performance builds. More than just an auxiliary injector controller, the ReFlex+ brings high end ECU features to your N55 at a fraction of the cost. Whether running standalone tuning or fully integrated with CAN Bus platforms, the ReFlex+ provides unmatched flexibility, precision, and reliability. Perfect for sequential port injection,