Cabin filter
NCM Lifetime Member
Joined: Aug 2015
Posts: 5,341
Likes: 4,286
From: Cunningham, TN
2021 Corvette of the Year - Modified
2020 C5 of the Year Winner- Modified
C5 of Year Finalist (appearance mods) 2019
St. Jude Donor '18 thru '26
It doesn’t need one. Your breathing rare air my friend! 
Administrator
Joined: Mar 2001
Posts: 368,037
Likes: 24,727
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
As stated, there is no cabin air filter on the C5. Saves you a little maintenance there.
Burning Brakes
Joined: Dec 2017
Posts: 755
Likes: 272
As stated above, there is no cabin filter. If you remove the wiper arms and rain tray at the base of the windshield, you'll be able to access the port that the blower motor draws outside air from if you have re-circulation turned off. Some guys have fashioned their own cabin filter over this opening. Said port is notorious for junk buildup and critter nests. If you start to get a moldy or foul stench from the vents, that is the first place to check.
