Motone Nautilus Exhaust System - 2016+ Triumph Bonneville T100 / T120The highly anticipated Nautilus exhaust system is here! Replaces complete exhaust system in your bike including the cat a cross over pipe is integral to the design providing a H Pipe type distribution of torque Baffles are included in the main body of the pipes to modulate the sound to keep it below ear bleeding still loud not insane Pipes are built using a system of tig welded pie cuts of 300 Series Stainless Steel Bolt On for all variants of the