550-1159 Mufflers - Grand National - So
incl. VAT
Estimated delivery: 3–15 working days
Authorised
Iron City Dealer
14-Day Returns
Easy & hassle-free
Secure Checkout
256-bit encryption
Free UK Delivery
On orders over £100
Specifications
- Brand
- S&S
- Part Number
- 550-1159
- OEM Reference
- —
- Pack Quantity
- Sold as ea
- Category
- 1801-MUFFLERS FOR HARLEY
- VAT Rate
- 20%
About This Product
S&S Grand National 4-inch slip-on mufflers feature a blacked-out finish on both the muffler body and the race-inspired end cap. These mufflers are EC-approved, making them a great choice for riders in regions with strict noise and emission regulations who still want an upgraded look and sound. The Grand National design is a nod to S&S Cycle’s heritage in flat-track racing, providing a sporty silhouette and a refined, deep exhaust note. The durable black finish is designed to resist heat and road debris. This muffler is sold individually, allowing for versatile application on various Harley-Davidson models.
Manufacturer part number: 550-1159.
Fitment
4 models Softail 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2025 | Softail Heritage Classic 117 FLHCS |
| Harley-Davidson | 2025 | Softail Low Rider S 117 H.O. FXLRS |
| Harley-Davidson | 2025 | Softail Low Rider ST 117 H.O. FXLRST |
| Harley-Davidson | 2025 | Softail Street Bob 117 FXBB |
Related Products
View all →
Rinehart Racing
EXHAUST 2-1 SYSTEM - FLH 17-UP
Rinehart Racing
MUFFLERS 4 SLIP-ONS - FLH 95-1
Vance & Hines
MUFFLER TQ 4.5CH 17-20FL
Vance & Hines
MUFFLERS 3 TWIN SLASH CHROME S
Vance & Hines
MUFFLER SLIP ON SOFTAIL BLACK
Vance & Hines
MUFFLERS SLIP ON BLACK
Vance & Hines
MUFFLER ELIMINATOR 400 SLIP-ON
Vance & Hines
MUFFLER HI-OUTPUT SLIP-ONS - X
More from S&S
View all →
Flywheel assembly for 124" T-series 4-1/8" bore engines
06-17 4-5/8" stroke flywheel assembly
HI-4N ignition module, coil & spark plug wire kit
Rear belt XN7 carbon cord. 25mm wide, 136T
Rear belt XN7 carbon cord. 1" wide, 137T
Valve spring kit. STD to .550" lift
Pinion gear L77-89. Green
00-06 Softail 4-5/8" stroke flywheel assembly
Who are we? Leeds Harley-Davidson - Iron City Motorcycles
This product is fulfilled by Iron City Motorcycles, Leeds' authorised Harley-Davidson® dealer, serving the UK with a full range of Genuine Motorclothes®, dealer merchandise, and official Harley-Davidson parts & accessories — available for UK and international delivery.
From OEM Parts to retro lifestyle wear to aftermarket stockits we have what you need to keep you riding all year round.
Use our official OEM parts finder to browse our full Genuine Harley-Davidson® Parts and our associated approved aftermarket catalogues.