hey im about to order a passenger and driver side mount set for my probe gt (fs motors and kls have the same mounting points so we use the same mounts) no one on proabtalk has looked into the sls or street unit mounts... just want to know wich one ios better the street unit looks a bit stronger... but then again with car crap sometimes the big beefy stuff is jsut made from cheap metal to compensate... im not doing anything crazy jsut a klze swap and a 55 shot... so i dont think ill brake ither one... but since i daily and race this on the weekends id rather get some feed back first