Uprated, adjustable twin piston air recirculating dump valve in machined aluminium for all integrale and Evo models. 

Comes with an additional uprated spring for 1.3 - 3 BAR.

Machined, aluminium, vent to atmosphere, piston dump valve.

Suitable for boost up to 1.3 Bar & a stiffer spring is included for 1.3 - 3 Bar competition cars.

Group A 70mm/3" stainless steel Ragazzon front pipe for Lancia Delta integrale and evo 1, cars with no catalytic converter.

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.

Standard exhaust centre section for all Lancia Delta integrale 8v, 16v models without Kat. As original, hot-dip galvanized steel. Made in Italy by an original equipment supplier.