smpis350

I have a 2008 IS....I just installed new F-Sport Sways front and back, and I was looking for some performance springs....Can anyone suggest some performance spring that DON'T lower the stock suspension? ( For medical reasons, I don't want to lower the ride, but want better handling and performance ) .

I would appreciate any help/sdvice out there and thanks!

2008 SGM w/Navi, 18"alloy, F-sport sway, HID main and Fogs, Rear sensing system, LED Lighting upgrade all around...planning on F-sport Exhaust/Intake soon.