Tein Street Advance Z Coilover Suspension Kit - Mazda3 Fastback BPEP Chassis 5mm shorter shifter and stiffer

5mm shorter shifter and stiffer inner rubbers

splicing or running wires through the firewall into the cabin

but at the same time

consider using Exoracing adjustable AN wrench spanners

Tein Street Advance Z Coilover Suspension Kit - Mazda3 Fastback BPEP Chassis 5mm shorter shifter and stifferMuch like Tein Street Basis, Street Advance utilises a twin tube system and has adjustable lowering spring seats allowing you to adjust ride height. Unlike Street Basis, it also features adjustable damping force, allowing you to effectively change your handling characteristics. Compared to mono tube suspension, Street Basis is twin tube, meaning it attains a longer stroke with a smaller repulsive force, resulting in excellent high ride comfort.