Tein Flex Coilovers are probably your best bet seeing as they are just on the edge of a competition coilover but still offer enough comfort for a street ride. We have installed and setup the suspension for a few guys locally and they ride like they are on rails.
Stop into the shop and I can show you a Tein Flex Coil over and run you through the adjustments available and answer any questions you might have.
I dunno, if I were you I’d wait just a little while to see what other people think of the new Apexi stuff. I’ve heard lots of complaints from IS owners about the Tein setup.
You should take a look at these… Thay are not going to corrode and freeze up on you…These are what I run and have had no issues at all… But they are $$$$