Yamaha YZ125 Exhaust Systems
When it comes to exhaust pipes for your YZ125, you have some great ones to choose from. Pro Circuit has a Works pipe that is excellent for two-strokes. The Works pipe increases horsepower and torque in all rpm levels. It has an unplated, oiled metal finish, so there will be some maintenance, but the performance you get will make it worth it.
The 304 Silencer is available from Pro Circuit as well. The somewhat longer body has a more reduced noise output than the R-304. This brushed aluminum body and stainless steel inlet tube and cap make it maintenance free. FMF also has an SST pipe for your two-stroke that increases the mid-range pull, extends the over-rev, and throttle response. It has been chrome plated for strength and a great look.