This atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably.

Full stainless steel exhaust system, with the same diameter as the original stock exhaust with a silencer on the twin exit back box.

Standard OEM air recirculation dump valve in plastic for Lancia Delta integrale 8v, 16v, Evo 1 & Evolution 2. Other ref 82468490.

Hose reducer for the wastegate control valve system, to join the hoses from the wastegate and the Turbo intake side to the Pierburg valve. Sold individually. For all Lancia Delta integrale models. Two per car.

Turbo to exhaust stud for cast manifolds on Lancia Delta integrale 8v, 16v, Evo 1 & Evolution 2. Sold individually, price is per stud.