Looks like a T2+ or e.
With the IBF fitted there is no longer any engine air going in the front of the cowling. The oil cooler exhaust is ducted up to the top rear of the upper cowling (gear cover) so it is not ingested into the engine from the normal outlet via the IBF. When the IBF is in bypass there is probably enough air available from the area of the mast and swashplate opening.
They may all end up looking like this in the future?