As title, Used Apexi Active Tail Silencer 90mm. Bought from RHD Japan a few years ago. Used but still in perfect working order and still in its original box. The Apexi Active Tail Silencer features an anti-pressure response valve to decrease exhaust volume. The 'Active' Tail Silencer opens as the pressure increases to provide free high flowing exhaust flow when power and torque is required but reduces volume through restriction during times of low pressure. These features help to reduce noise when required but not hinder performance when desired. £90 delivered next working day by City-Link.