Seeing as how I think Im the only one who actually likes neon on this board, I'll answer it.
The "legality" of the kit depends on how distracting it is. In WI, all kits are illegal. I think in Cali, they are legal as long as the kit doesn't change colors, pulse, chase, scan, etc. Basically your run of the mill boring neon kit. Stays on color, and doesn't change at all.
Just make sure you check with your local laws before you believe what the box says and see if you can drive with the kit on or not.
1999 Chevrolet Camaro SS (PC'd)
1994 Chevrolet Beretta Z26 Q4 (W41 M90'd)
2004 Chevrolet Silverado 2500 (4WD)
My wife's cars:
1971 Dodge Charger SE (stock and original 383 auto)
2004 Subaru Impreza WRX (kid-hauler)