there are 3 types of injectors i think different gradients. ill be able to reveal all once i get it. i think i might give yer freind a shout when it comes to ordering
More than likley they will be BUT the volvo come in 3 different flow rates going by the volvo site.
If the cstomer wants a new injector get one. If they want a bodge see if you can get a 2nd hand one from the same car and engine. Just make sure they are the exact same.