Leading shock tower the Semi-Split Bulkheads accommodates the strengthened M4 surprise screws offering increased dependability. The very best surprise tower is CNC-machined from 4mm Swiss 7075 T6 aluminum for durability and power. Front tower features an extra type of shock absorber functions for super fine customizations. The low line produces less framework roll for higher component rate as the top row escalates the roll to help increase traction.