Originally Posted by mike-y
non-sport front strut guides are lighter and a little taller (about .25 inch) than the sport guides. I'm guessing the weight could be due to aluminum vs steel construction, but I'm not 100% sure.
The sport suspension has shorter bumpstops, and it's possible that the durometer is higher on them, but that is just a guess. If you are getting new coilovers, they should have their own bumpstops though, and either strut guide will work since you can adjust the height on the coilover.
Weird thing is that they are the same part number on that order details. Thats what made it weird.