FMF Factory — Big Bore Pipe (025224)

The Factory Fatty Big Bore is the Factory Fatty platform tuned for big-bore 2-stroke conversions. Hand-cone, hand-rolled construction with the same broadened powerband as the standard Factory Fatty, sized and tuned for higher-displacement 2-stroke cylinders.

• Hand-cone, hand-rolled construction
• Tuned for big-bore 2-stroke engines
• Broader powerband with strong over-rev
• Hand-TIG-welded seams
• Made in Southern California

This is a 2-stroke exhaust. It is engineered for the 2-stroke engine architecture above and physically will not fit a 4-stroke bike. Verify your engine type before purchase.