extra info:
The SEAT air box has somewhere to plug the IAT sensor into, & accepts the ABF intact duct no problem.
The Mk2 GTD does not have a location for an IAT sensor, & accepts the ABF intact duct no problem.
The Corrado air box does not have a location for an IAT sensor, & requires modification to join with the ABF intact duct.
To fit the IAT in a GTD box, drill/cut a hole that is a tight fit for the IAT sensor, then use some sealant.