In today’s world motorcycle sound requirements are not to be ignored!

Big City Thunder has addressed these sound issues with our new patented Quality Quiet Thunder Monster baffles. Our new QQ Thunder Monster baffles are quieter than our original Thunder Monster baffles with a rich, deep tone to the exhaust note. Our latest breakthrough design dissipates sound energy to reduce the db levels. The new QQ series also increases ridability and mid range performance.

We call them Quality Quiet Thunder Monster baffles. You’ll call them the best decision you ever made for your bike.

Our new QQ series is available for the following size pipes:

2 1/8″ inside diameter with a 2 1/4″ outside diameter 2″ inside diameter with a 2 1/8″ outside diameter 1 7/8″ inside diameter with a 2″ outside diameter

QUIET NEVER SOUNDED THIS HOT!!