With many years of racing experience behind it, the Fatty Gold Series delivers race-proven performance.

The Fatty boosts and smooths the power curve for more power across the rev band. 

Details:

• Increases power across the entire power band
• Carbon steel with nickel plated finish for maximum durability.
• Guarantees a perfect fit and optimum performance
• Can be used with FMF or stock mufflers 
• O-rings included