Big Bore throttle bodies for 944 and 924S Engines. +13% surface area for the intake. +5 to 10 HorsePower Flap is stainless. Easy 15 minutes install Horsepower gains are very noticeable mid-high RPM. Send me a picture of yours so I can send you the same type (1 or 2 vacuums?) International bidders, please ask for shipping costs before bidding!!! I have many parts in stock for all the Porsche 924 and all 944.