Spiral Turbo Specialties Turbo Baffles for C3 Corvette exhaust systems that use three and a half or four inch sidepipes. The baffles boost horsepower and decrease loudness. | Posh Speaker Systems Manufactures patented loudspeaker systems for commercial and home entertainment such as ceiling, bookshelf, in-wall, infinite baffle speakers and subwoofer. | Tai Pong Enterprise Corp. Manufacturer of PA system, lectern, portable wireless, column speakers, ceiling baffle speakers, in-wall speakers, foreground speakers, project speakers, and wall-mounting box speakers in Taiwan. |