I shouldn't of thought they will do a great deal of engine work, it will cost to much. They're probably going to use a lower power version of the engine. The T5R putting out 260bhp has a higher pressure turbo. Volvo do a couple of versions of the 2.4T, some with lower pressure turbos that dont kick out as much power. The sort of power I've heard about is 220bhp, which is about right for the lower power 2.4 engine. They are very well balanced and powerful engines, with the 5th cylinder making accelerartion feel really smooth. Several years ago, my dad had an 850 T5R and is was blinding.