Its a guess and thats all we can do without knowing history nor seeing the vehicle.
I would say if they are yellow somone has fitted yellow britpart "lift kit" whay shocks are fitted? they may help, may not. I'm not a keen fan of "lift kits" I would want to know spring rates and decompressed lengths before fitting anything. Thats why I stayed with LR springs and choose from them as they have the figures available. Alot of "lift Kits" are just bloody strong springs.