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All American KTM

FMF Fatty expansion chamber – SKU: A40005907000

FMF Fatty expansion chamber – SKU: A40005907000

SKU:A40005907000

Regular price $289.99
Regular price Sale price $289.99
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  Full sound    

Extra strong sheet steel    

Nickel-plated surface    

Better power delivery    Higher maximum power

Combination with FMF silencer recommended

Part Number: A40005907000



Product SKU: A40005907000
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⚠️ WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more.