This is the Werks Racing 2057 One Piece Tuned Pipe. This pipe set includes not only the pipe, manifold, gaskets and springs, but also a pipe extender, allowing you to tailor the power delivery of the pipe for a variety of track conditions by changing the overall length of the pipe.

Without the extender (short position), the 2057 provides smoother bottom end power delivery and increased top end when compared to the 2013. With the extender installed (long position), the bottom end power delivery of the pipe is increased, with mid range and top end similar to that of the 2013 with a slight increase in runtime. It is recommended that the pipe be run in the short position for large flowing tracks, and in the long position for smaller or more technical tracks.