Well, from when I was installing it, it looked like a basket inside the DP right where the O2 sensor goes, and it was filled with what looked like a media made from a different blend of metals that looked like steel wool (this was a while ago but I'm pretty sure that's what it looked like)...
I've driven my car for about 4,000 miles with the Armytrix catless down pipe and AWE resonated track edition exhaust installed, and I don't think the interior noise is all that loud, you definitely notice it but its still possible to have conversations in the car while driving. When cruising at...
2019 Tesla model 3 sr+ (first brand new car put 46k miles on it) it was fun and super reliable but I couldn't connect with the car felt like something was missing so I got a ...
2017 Tesla model X 100D (mostly for the cool doors I thought the cool factor would help with forming a bond with it)...
i I have the JB4 Velcroed to the wall infront of the brake booster with the wireless phone connection module zip tied to the JB4 unit itself.
This is the Velcro tape I used I got it on Amazon BTW.