Exhaust Collector Pipe with Thunder Aluminum Silencer

The Arrow 52003MI is a high-performance racing exhaust collector designed specifically for the Yamaha WR 125 R/X motorcycle models manufactured between 2009 and 2016. This exhaust system is intended for racing use and offers a power gain of 12 HP at 9000 rpm, as measured on a wheel on a rolling test bench. The figures provided represent the best configuration available for Arrow exhausts. Please note that this collector pipe is compatible only with ARROW slip-on exhausts and may require 15-20 days for production. It is important to note that this specific model, the 52003MI, does not fit the YAMAHA WR R 4T 125 2009-2016 WR X.