Do your part in keeping noise levels to a minimum by adding one of our new style turn-down silent inserts to your Endos spark arrestor end cap.

This new generation version of the Pro Moto Billet silent insert is less restrictive and performs better than its predecessor.

Insert fits all new style color anodized "cone" type Pro Moto Billet spark arrestor end caps and reduces the exhaust note by 3–5 decibels* for a more acceptable sound intensity level.

Requires a Pro Moto Billet Endos spark arrestor to install.

NOTE: These Will NOT fit our older style polished "snorkel" style end caps. If your end cap is bright polished aluminum, then you have our older style end cap.

*Sound intensity level will vary depending on model, tuning, and exhaust system condition.