S&S CYCLE Grand National Slip-On Muffler - 50 State - 4" Chrome - M8 Softail

Mufflers

S&S CYCLE Grand National Slip-On Muffler – 50 State – 4″ Chrome – M8 Softail

$ 495.95

In stock

Grand National Slip-On Muffler – 50 State – 4″ Chrome – M8 Softail

Part #: 18011846

S&S CYCLE quality guaranteed.

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S&S CYCLE Grand National Slip-On Muffler – 50 State – 4″ Chrome – M8 Softail

Additional information

Weight	10.65 lbs
Part Number	18011846
Punctuated Part Number	1801-1846
Vendor Part Number	5501160
Vendor Punctuated Part Number	550-1160
Commodity Code	1801
Commodity Group	EXHAUST GROUP
Commodity Type	MUFFLERS FOR HARLEY

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Product Description

S&S CYCLE Grand National Slip-On Muffler – 50 State – 4″ Chrome – M8 Softail

Key Features

Race-inspired design with a 4″ outside diameter muffler body
Removable dB reducer for back pressure and sound tuning
Meet J2825 levels for sound
Grand National® end cap
All hardware included
Deep-performance rumble replaces stock whisper tone
Made in the USA

Technical Specifications

Weight: 10.65 lbs
Supplier Number: 550-1160
Unit of Measure: Each

Current Warehouse Inventory

Stock by Location:

✗ Janesville, WI: 0 units
✗ Batavia, NY: 0 units
✓ Dallas, TX: 11 units
✗ Fresno, CA: 0 units
✗ Reno, NV: 0 units
✓ Asheville, NC: 2 units
✓ National: 13 units

Total Available: 26 units

Inventory Last Checked: December 4, 2025 at 1:00 AM UTC

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Thank you for Shopping at Knobtown Cycle!

When you shop with us, you’re not just buying motorcycle parts — you’re supporting a small, family-run business rooted right here in the heartland of America. Every order helps us keep riders on the road and fuels our passion for serving the motorcycle community.
From all of us at Knobtown Cycle, thank you for choosing local and riding with us.

Kit Fox – Owner Knobtown Cycle

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