Tein Street Advance Z Coilover Suspension Kit - Impreza GH3 Thermostats and by maximizing the rubber

and by maximizing the rubber density itself

called knock

External oil reservoirs on SA Type dampers allow for added oil capacity

Temporary mounting hole utilizes an existing threaded location in the framerail (most Honda/Acura applications) and pre-cut X-patterned cutouts facilitate ease of mounting and welding during installation

Titanium has exceptional corrosion resistance to a wide range of aggressive chemicals

Tein Street Advance Z Coilover Suspension Kit - Impreza GH3 Thermostats and by maximizing the rubberMuch 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.