Just traded my Boxster for an FR-S ... we'll see how that goes.
Anyway, I have some new parts I never got around to installing.
All were purchased for a 2000 986 Base/Tiptronic - check part numbers for fitment on your car. These were all purchased from Pelican Part (great service!) and I've provided their web links. All prices include shipping to Lower-48 only.
Wahler (OEM) Thermostat, part# 996-106-013-59 - Pelican price $53.75, asking $35 shipped.
Pelican Parts - Product Information: 996-106-013-59-M2
Bosch Oxygen Sensors - I have total of three. Pelican price $170 each, my price is $120 each or all three for $300.
Two are the BEFORE catalyst (shorter blue cord) sensor,
part# 986-606-127-01-M14
Pelican Parts - Product Information: 986-606-127-01-M14
One sensor is the AFTER catalyst (longer black cord) sensor,
part # 986-606-128-01-M14
Pelican Parts - Product Information: 986-606-128-01-M14
BONUS - first to buy any or all of the above gets a free Mann filter (HU 719/5x) with o-ring and washer.
All sales final, check part numbers carefully. Payment via PayPal only.
PM me if you are interested. Pics of actual parts are below.