IS Aero parts fitment feedback thread

[Neo]

In an effort to utilize the collective knowledge of CL members who have added aero parts to their car, it would benefit other members who are contemplating the purchase of parts to know some details up front.

If possible, please include the following info:

Car- 1IS (01-05), 2IS(06+)
Car Year - Just in case there is some quirk about a certain year.
Part type - full kit, bumper, sideskirts, spoiler, roof spoiler, grille, lips, ...
Part make - the manufacturer of the part
Part construction - polyurethane, FRP, fiberglass, ...
Source - where did you get the part
Price - if available
Fitment - crash bar shaving, crash bar removal, bolts alignment, any quirks on how it lines up, smoothness of surface, prep work requirement, ...
Installation - any install tips?
Durability - how it holds up (driving mishaps, scrapes, bumps, ...)
Notes - anything else to add

Let me know if there is anything other useful info that I've left out.

Thanks.