Tein Street Advance Z Coilover Suspension Kit - Impreza GH8 Tein Pro Series Valve Springs and

Pro Series Valve Springs and Titanium Retainers originally designed for B Series engines

and that each piece is free from machining defects to ensure proper installed valve spring heights and pressures

For a cooler more efficient running engine

There are no negative elements such as arrow-like straightness and handling that is not affected by the road surface

Tein Street Advance Z Coilover Suspension Kit - Impreza GH8 Tein Pro Series Valve Springs andMuch 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.