The BAT kit consists of non-adjustable (but good) struts with stiffer and lower progressive rate springs, meaning their first inch of travel is softer than their second inch of travel. Kit lowers the car about an inch all around.
The Intrax springs, according to their website, drop you a little more, more like 1.7" in front, and will definitely look lowered. Also, judging by the website, they are progressive rate, so ride quality should be ok during level cruise.
Main drawback I can see for the Intrax is that they are purple?
