Honda Pioneer SXS700M2P 2019 Owner's Manual page 201

Exhaust Pipe and Muffler Maintenance
Refer to Safety Precautions on page 105.
The exhaust pipe and muffler are stainless steel but may become
stained by mud or dust. Make sure no flammable materials or debris
are sticking to the exhaust system. If any flammable materials or
debris is found, remove it.
To remove mud or dust, use a wet sponge and a liquid kitchen abrasive,
then rinse well with clean water. Dry with chamois or a soft towel.
If necessary, remove heat stains by using a commercially available
fine texture compound. Then rinse by the same manner as removing
mud or dust.
Finishing Touches
Refer to Safety Precautions on page 105.
(Except for mat painted surface)
After washing your Honda SXS, consider using a commercially
available spray cleaner/polish or quality liquid or paste wax to finish
the job. Use only a non-abrasive polish or wax made specifically for
motorcycles or automobiles. Apply the polish or wax according to
the instructions on the container.
Appearance Care
Servicing Your Honda 191