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S&S Cycle Grand National Slip-On 304 Stainless Steel Stock Inch Muffler 550-1121
Part Number: SSY-550-1121
S&S Cycle Grand National Slip-On Mufflers
Muffler, Grand National, Slip-On, Round, 4.5 in., Stainless Steel, Black Satin, Black Tip, Indian Scout, Each
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
550-1121
Part Type:
Product Line:
Summit Racing Part Number:
SSY-550-1121
Muffler Material:
304 stainless steel
Inlet Diameter (in.):
Stock in.
Outlet Diameter (in.):
4.50 in.
Inlet Quantity:
1
Outlet Quantity:
1
Electronic Valve:
No
Internal Construction:
Baffled
Inlet Location:
Center
Outlet Location:
Center
Case Shape:
Round
Reversible:
No
Muffler Color:
Black
Muffler Finish:
Satin
End Cap Material:
Aluminum
End Cap Color:
Black
End Cap Type:
Open
Outlet Style:
Straight tip
Remanufactured:
No
Quantity:
Sold individually.
S&S Cycle Grand National Slip-On Mufflers
S&S Cycle Grand National slip on mufflers give your ride a cleaner, more aggressive look with performance slip ons that sharpen the exhaust profile and deliver a deep, throaty V twin sound. Available in either brilliant chrome or a durable black finish, these Grand National slip ons feature a sleek aluminum end cap, stainless steel baffles, and removable dB reducers that let you fine tune your sound to your liking. They bolt directly onto the factory header with no tune required, making installation effortless while instantly waking up the character and tone of your motorcycle.
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Some parts are not legal for use in California or other states with similar laws / regulations
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