This is designed to be a direct replacement of the original plenum but with increased volume. The throttle body flange is alloy and available with 3 throttle body PCD options. Standard, Ferrari 360, and a 4x 75mm PCD Ferrari 430 Bosch throttle body. Also available is a bracket for the ECU which isn't needed for all fitments, please confirm at the time of ordering if you'd like the ECU bracket and which throttle body PCD you'd like. Depending on configuration, up to an 20hp and 25lb/ft increase is possible with a remap, more with our carbon fiber intake tubes.The item "Alfa Romeo 24v V6 Carbon fiber Air box plenum 156 166 164 GTV Spider GT GTA" is in sale since Thursday, September 12, 2019. This item is in the category "Vehicle Parts & Accessories\Car Parts\Engines & Engine Parts\Other Engines & Engine Parts". The seller is "rennsportfactory" and is located in Launceston. This item can be shipped worldwide.