kommer vel ann på hva man mener med større modifikasjoner. n order to swap the 2.5 in place of the 1.8, you are going to require a few things. First is the motor mounts. You are going to need all 4 mounts off of an MX3 GS (V6 model.) You are also going to need the axles, crossmember, intermediate shaft and clutch assembly, you will also need the transimission. So in reality, it would help if you had an MX3 V6 parts car kicking around, because these parts are not always the easiest to come by, and the dealership will charge you an arm and a leg. bare se her http://www.cardomain.com/ride/364076/1