S-Workz TB-1 & EFRA 2089 pipes
S-Workz have developed two new pipe system for use with their engines and other 3 port motors. The TB-1 series is designed for high performance and low cost and features a patented exhaust stinger system. Sold with 3 different interchangeable stingers, the original 8mm version is silver, the red version is 7.5mm and the blue is 7mm. S-Workz also have their EFRA 2089 pipe, which is hand made in Japan and gives lots of torque.
Source: S-Workz [sworkz.com]