Porsche takes upcycling to new (and loud) levels with their Porsche 911 twin exhaust speaker. The Bluetooth wireless sound system was built from the module of a Porsche 911 GT3 so you can turn up your music library from 0 to 11 in 3.2 seconds flat.
Porsche's is a 60-watt system with, uh, twin speakers. Bluetooth will let you play music from your smartphones, tablets, or PCs in CD quality. Battery life is 24 hours per charge. The converted 911 GT3 exhaust measures 11" x 6" x 5".