Perrin Fire Wall Grommet 1.4 inch 2015-2017 Subaru WRX / STI | ASM-GAU-120

So I ended up purchasing this due to having to delete the sound generator when I installed my Cobb SF intake. Install was easy (about 5 mins). You do need to kind of bend it a little to get it to fit correctly in the firewall hole, I suggest working one side in first and the next should fit in just perfectly. Has an opening in the front in case in wires are needing to be fed through it as well. Overall, solid product.

Nice little grommet to run wires and such through your fire wall. Got this for my 16 WRX and installed it yesterday. Kinda a pain in the but to route wires through the firewall, but that is no fault of Perrin. Again awesome grommet.