The Dual Port is a 50-50 vent-to-atmosphere/recirculating valve

WG38/40 3psi Black Inner Spring

This high performance billet aluminium valve bolts straight onto the the compressor cover of the AMG's turbocharger

Higher roll center (RC)

Clutch Kit - Xtreme Performance Heavy Duty Organic 550Nm KCR27001-1A JR5 The Dual Port is aXtreme Performance sprung organic kit 1A Recommended for: Street use in vehicles with minor engine modifications. Sprung organic clutch kits offer exceptional driveability for vehicles used daily but also have performance modifications. The sprung organic disc offers improved dampening which reduces the shock loading on the transmission. Specifications: Torque capacity 550Nm Clamp load Increased over standard Organic Friction Discs Heavy Duty Pressure