I wonder could the Waterford-Rosslare programme get some enviro funding by having "their" 2700s participate in this UK engine research programme for Cummins 855 engines.
http://www.railwaygazette.com/index....cf10e452692c30
I believe the same engines are in the 26s and 28s so IE could observe the performance of the refitted 2700 set(s) with a view to evaluating cost benefit of a fleet-wide upgrade.