High-performance replacement exhaust mounting hardware kit engineered specifically for twin-cylinder two-stroke applications. Designed to provide a secure, leak-free seal between the exhaust header pipes and cylinders while withstanding extreme thermal expansion and engine vibration.
Specs & Details
- Manufacturer Part Number: 78-1099
- Alternative Part Number: FMF 020084 / 010069
- Component Type: Exhaust Spring & O-Ring Kit / Mounting Hardware
- Material & Construction: High-temperature fluoroelastomer (Viton) O-rings and heavy-duty steel expansion springs
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| Yamaha | YFZ350 Banshee | Twin-Cylinder Two-Stroke ATV | 1987–2006 |
TSO Garage Note
An essential maintenance refresh for your legendary Banshee twin. Fresh O-rings stop oily exhaust dumper leaks at the spigots, while new tension springs keep the pipes securely anchored under heavy dune and trail vibrations without fatiguing or rattling loose.
