Pro Circuit Stainless Steel Quiet Inserts

• Inserts make your motorcycle quieter, without the loss of power
• Available for both the 4" canister and 3.5" canister

Size options:
• 1 1/8" 3.5" Flat Base
• 1 3/8" 4" Flat Base
• 1 1/2" 4" Flat Base
• 1 1/2" x 100 4" Flat Base (Euro)
• 1 5/8" 4" Flat Base
• 1 3/4" 4" Flat Base
• 3.5" Base (with Spark Arrestor)
• 4" Flat Base (496)
• 4" Base