Up front i used to have JIC coils but those blew, now im on raceland. so far the HTS have outlasted the JICs and ive been on raceland fronts for about 7-8 months now. all together ive been on this pair of HTS for about 5+ years (with JIC coilover springs) and they are still going strong (knock on wood), running just below full-stiff most of the time. I cant speak on the warranty because ive never had to worry about these bad boys.