the middle core is Medium foam designed to trap most particles and the inner core is fine foam which will trap the remainder of the particles

apart from exceptions

Ferrari 250 GT & 350 GT

Il flusso d'aria che scende dal tetto viene deviato verso l'alto e genera piu carico sul retrotreno

it is ideal for giving more character to the vehicle while offering a discreet but nice sound (+2 dB at mid-range compared to the OEM system)

Assetto Regolabile D2 Super Racing Coilover per Honda Civic FB (12-15) 159 (939) (2005-2011) the middle core is MediumD2 Super Racing Coilovers Specifically designed for competition For Honda Civic FB (12 15) Compression and rebound adjustable Extremely fine adjustments, over 10. 000 combinations Remote oil reservoirs for superior capacity OEM brake hoses brackets Corrosion resistant aluminium construction 1 year manufacturer warranty TV and ISO 9001 approved Coilover or Inboard Springs ? This model of adjustable suspension offers you the choice between inboard