only thing ive changed is rear shocks for new ones and put rims off an exa which are 13"X5.5 with the exact tyres i had on the old rims and my car is understeering really bad

it understeered what i thought was too much before but now its terrible!, i have a semi lsd rear end which could be pushing me into corners but thats always been there

the offset of the new rims seems similar to old but handeling is VERY diffrent

whats happening? any ideas appreciated