This is the Silicone Exhaust Muffler Tube from Traxxas.
This slides onto the muffler exhaust outlet, and is used to direct
the exhaust away from the vehicle.
FEATURES: Clear silicone construction
INCLUDES: One Silicone Tube
SPECS: Length: 203mm (8")
Inner diameter: 8mm (0.32")
Outer diameter: 14mm (0.55")