Description
From the leader in V-twin exhaust systems, the Rinehart Racing HP40 2-into-1 Slip-On Muffler is engineered to transform your 2025-and-newer Harley-Davidson Softail. Designed to pair perfectly with the factory 2-into-1 header, this 4-inch free-flowing muffler delivers the unmistakable deep, throaty Rinehart Rumble riders expect, while enhancing overall performance and throttle response.
Built to the same exacting standards as Rinehart’s HP45 and DBX Touring slip-ons, the HP40 features advanced spiral core baffle technology to improve exhaust flow and engine breathing. Finished in a durable black coating with a black end cap and backed by Rinehart’s legendary Made-in-America Lifetime Warranty, this slip-on provides the sound, performance, and durability your Softail deserves.
Features:
- Free-flowing 4-inch muffler enhances power and throttle response
- Spiral core baffle improves exhaust flow and engine breathing
- Deep, aggressive Rinehart Rumble V-twin exhaust tone
- Direct bolt-on fit for factory 2-into-1 Softail header
- High-quality black finish for long-lasting durability
- Black end cap adds a clean, aggressive styling touch
- Manufactured in the USA to premium build standards
- Backed by Rinehart Racing lifetime manufacturer warranty
Specifications:
- Brand: Rinehart Racing
- Series: HP40
- Part Number: 500-1250
- Exhaust Type: 2-into-1 Slip-On Muffler
- Muffler Diameter: 4 inch
- Finish: Black
- End Cap Finish: Black
- Baffle Type: Spiral Core
- Material: Steel
- Country of Origin: USA
Included:
- (1) HP40 2-Into-1 Slip-On Muffler
- (1) Black End Cap
Fitment:
- 2025-2026 Harley-Davidson Softail models Milwaukee-Eight 117
- 2025-2026 Harley-Davidson Street Bob Milwaukee-Eight 117
- 2025-2026 Harley-Davidson Low Rider S Milwaukee-Eight 117
- 2025-2026 Harley-Davidson Low Rider ST Milwaukee-Eight 117
- 2025-2026 Harley-Davidson Heritage Classic Milwaukee-Eight 117
Note:
- Lifetime Warranty
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