Hello professional guys/gals. my car is lower is (under exhaust) height is 100mm and tyre now is front 235/35/20 and back 245/40/20 Under bump road had touch i got abit headacre. If I go grab put Front 235/40/20 Rear 245/45/20 Will work front 5mm up and rear 10mm up? Or change lower spring little higher? If was you what should you do? thank professionals for helps.