AIRTEC Motorsport Header tank for Focus Mk4 ST Mishimoto Twin o-ring seal design between

Twin o-ring seal design between the turbo coupler and inner surface of the turbo inlet ensures no leaks and no debris can be drawn into the turbo internals

Part Number (MPN): MDB1404M1155

In some cases

It’s common knowledge that some engines with vacuum operated ECU controlled VNT/VGT turbos suffer erratic boost behavior

AIRTEC Motorsport Header tank for Focus Mk4 ST Mishimoto Twin o-ring seal design betweenAs part of our expanding Ford Focus product range, AIRTEC Motorsport is proud to launch our header tank upgrade to suit Mk4 ST models. A direct replacement for the original plastic tank, the AIRTEC Motorsport header tank is made from lightweight aluminium and comes in a high quality powder coated black finish. It also features a sight glass to view the coolant level and comes with an uprated high pressure cap. The tank uses original fixing points,