i have the jamex ones on mine, think they are same as hottuning ones, use my car daily, use it to haul djs to and from aiorports and to get to all my DJ gigs
had them on a year, not one problem at all, not quite as good as the koni set up on my other car but for the money i think they are awesome
you get a 2 year warrenty on them anyhow so your good for that amount of time