They aren't bad on the street. The make the rear end squat a lot more though. Conering is diminished a little but it is by no means dangerous. My car seems to ride like a caddy now. It made it a lot more smooth. I noticed about a 1inch drop in the rear and .5 in the front. I made it look right by putting shorter skinnies in front. I run welds all the time. With Wal-mart tires on my stock rims, I can launch pretty well. There is a night and day difference over stock. With just drag-launch springs as my suspension mods (no shocks/struts), I can launch hard at 5500 RPM with just a small chirp while spraying. Can you say new rear-end soon?
they will be fine except if you push them to the max on corners, they are made to slam power to the ground in a straight line, so it will sacrifice cornering slightly, my friend has some on his 5.0 and it handles fine on the street