View Single Post
Old 03-07-2024, 02:28 PM   #8
norcalpb
Senior Member
 
norcalpb's Avatar
 
Join Date: Oct 2013
Drives: 2013 BRZ, 2023 Model 3
Location: SF Bay Area
Posts: 2,297
Thanks: 1,219
Thanked 863 Times in 570 Posts
Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
I think that vented oem sway bar mounting bracket trim piece is to provide cooling for the secondary cat. The gr86 also has a new NACA duct on the skid plate that I believe is for cooling the primary cat. I’m thinking it’s all emission related but could be wrong.
norcalpb is offline   Reply With Quote