Review on 🚗 6.5-inch 3-Piece Car Speaker Enhancement Kit by FAST Rings by Fort Steffen

Strong adhesive that stays put even after pulling to change position. I haven't tested my new speakers without them, but the bass is amazing. I bought these based on numerous posts on car audio forums. I recommend them for any mid-woofer setup - whether it's a $1,000 set like mine or cheap ones, they'll improve your mid-bass response in your doors. Be sure to seal the door cavity/speaker gasket as well as possible to get the maximum benefit.