RSR Springs

[Dez]

Lads

Weighing up between the following two sets of springs - running my 2.5GT-B with the bilsteins at the moment. Need advice on which set to go:

RSR-Ti
https://www.japanparts.com/parts/detail/27351
- Lower the front 40-35mm and rears 35-30mm

RSR-Down
https://www.japanparts.com/parts/detail/27352
- Lower the front 35-30mm and rears 35-30mm

Would I have any problems with the stock billies?

Thanks
Derek