So I got an 08 GT/CS back in July that came with 245/45R19 Goodyear Eagles in the front, and 275/40R19 Firestone Firehawks in the back. The ride was a little rough, but I took that as normal because the car was lowered. I replaced all 4 tires with 245/35R19 Nexens in front, with 275/30R19 Nexens in back so it's a matching set. Surprisingly, the ride got better. I wasn't expecting that. What would cause that? I'm not as keen on suspensions, so this got me wondering if a simple tire change could make a difference like that.