I've had my Werks IC installed for a few years now with no issues. I even bought it used to save a few hundred bucks. It was not completely drop in as it was supposed to be. I remember having issues with IC piping hitting the hood on teh driver's side that I had to mess with and I seem to remember fighting it on the bottom as well. I remember installing and removing it multiple times but with the same results each time. Either way, I'm happy with it in the end.
DDM I/C Pipes, OCC, Shifter Kit, Silicone Hoses, T-Bolts, trunk/hood lights
Werks I/C, Rad, Backbone & Swaybars
Solo Race Pipe
3bar MAP w/ ZZP Tune
Windrestrictor & Lit Sills