Late to party but I figure I could share my journey in plugging up the hole....
Wasn't to fond of just stuffing it up with cotton, or re-purposing secret 12V cover. I live in Canada, so idk... my first instinct was Canadian Tire.
I found the ones suggested "DORMAN Panel Trim Fastener", but you need to request from the auto desk as the inventory thing said "Ask an Associate". Further... the design looked like it might not be easy to pull out.
Went to Home Depot next cuz it was close, couldn't find the right Crown Bolt nylon type covers, only metal ones.
In the end I went to Lowe's, Hardware section where you find drawers with all the screws, nuts, fasteners. Here is a pic of the packaging...
You need the
#881289 7/8 size, two for $2.79. Did a quick test, can plug and unplug easily. Cabin sounds cleaner, less engine rasp and more smoother tones. Even on stock muffler it sounds better. Great mod
