Well, I've seen some LIPP pieces and they're very nice. I've also not had any issues with ordering from SupraSport, except for when they sent me the wrong sparkplugs when I ordered some for a 7M-GTE, and they sent me some random plugs. We couldn't figure out why the car wouldn't start at all for the longest time.... then we checked the numbers, and low and behold, wrong plug. I checked the invoice, I specified the right part. It'd cost more in shipping to send them the fouled plugs back and get new ones, so I threw them away.
It's the little things... it really is.
I saw that driftmotion has a custom intercooler kit for the 7M in a MkIII... and it's quite reasonably priced as well. I wouldn't hesitate to buy that. DM is FTMFW.