all about how you drive the car with those headers....they don't just reach down and smash themselves...mine been on for over four years and no bottoming
**** I wouldn't be able to go over 10mph or make the car sit high (Yuk) if I didnt want to hit those low hanging headers. Had the in my car for years and it sucked.
With the tti headers u cruise around all normal like and never worry about hitting them.