S&S - Grand National 4" Slip-On Muffler - Sportster RH1250S 21-26 - Brushed Stainless
Propel the style and character of your machine into a new dimension with the S&S Grand National Slip-On mufflers. Specifically developed for the new generation of 2021-2026 Harley-Davidson Sportster S (RH1250S), these high-end mufflers unleash the full power of the Revolution Max engine while radically refining the rear line of your motorcycle.
Flat Track Design & Premium Stainless Steel Finish Directly inspired by the world of oval track racing, these mufflers stand out with their massive 4-inch outer diameter body. Their brushed stainless steel finish of aeronautical quality offers a raw, modern look and impeccable thermal resistance. The whole is crowned by the famous Grand National Thruster machined end caps made of solid aluminum, bringing an ultra-precise finishing touch.
A Deep Roar and Increased Performance S&S Cycle has put all its expertise into transforming the original sound signature. The Grand National mufflers deliver a deep, powerful, and aggressive sound that finally matches the sporty temperament of the Sportster S. By optimizing the exhaust gas dynamics, they also provide an increase in torque and power across the entire RPM range.
Sound Modularity Included To adapt to all riding situations, the system is equipped with a removable noise reducer (dB killer). This allows you to modulate the sound intensity while remaining compliant with the strict requirements of the SAE J2825 sound level standard when the baffle is installed.
Technical Specifications:
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Compatibility: Harley-Davidson Sportster S (RH1250S) models from 2021 to 2026.
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Outer Diameter: Generous 4" (10.16 cm) muffler body for optimal sound volume.
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Finish: High-performance brushed stainless steel (durable anti-corrosion design).
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End Caps: Grand National Thruster style in CNC machined aluminum.
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Mechanical Optimization: Increased overall performance (torque and engine responsiveness).
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Sound Management: Supplied with removable dB killers (noise reducing inserts).
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Package Contents: Sold as a pair with all necessary hardware for direct mounting (Slip-On).
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Origin: Proudly made in the USA.
🛠️ Compatibility: To avoid any compatibility errors, please use our vehicle search. If in doubt, do not hesitate to contact us to be sure.
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Cet embout en alu anodisé rouge est de très bonne qualité et donne belle allure à la moto avec les pegs rouges et le bouchon de réservoir rouge également.Donc très satisfait de mes achats chez 442 PARTS.
Très satisfait de cet achat, Bouchon de réservoir pour mon low rider ST.
Belle fabrication.Livraison rapide.
Je recommande ce site 442.
Super antivol pour la selle de ma moto.
Dommage qu'il y'a pas de deuxième clé 🔑
Très satisfait de mes achats,la livraison a été rapide et le matériel est d'excellente qualité. Les pegs Rouge se montent très facilement et avec le sélecteur rouge et le bouchon essence rouge ça donne une belle gueule à mon low rider ST . Merci je recommande votre site sans aucune hésitation.
Confort incroyable comparé a la selle d'origine je recommande
Super bien merci
Super produit de qualité, très satisfait.
Superbe repose pieds de qualité reçu dans un petit carton avec porte clé et autocollant. Le top.!
Livraison rapide et conforme
Très bon casque, aussi bien en maintient que sonorisation, prendre en option la visière teintée.
Beau produit, bien fini. L’emballage et la communication du 442 est top
TrèsBonproduit
Montés sur ma Harley pour le look… finalement je les garde surtout parce que mes bottes refusent maintenant de quitter les repose-pieds 😅
Super grip, finition vraiment propre, usinage de qualité et surtout une sensation de solidité dès le montage. L’inclinaison réglable est un vrai plus pour trouver la position parfaite, ça change vraiment le confort sur les longues balades 👌
Et les sliders évitent de pleurer à chaque fois que ça frotte un peu en virage 😂
Le plus dangereux au final, c’est l’envie d’attaquer un peu plus fort juste pour entendre le slider dire bonjour au bitume 😅
Honnêtement, vu la qualité et les détails, le rapport qualité/prix est vraiment excellent. Clairement du matos pensé par des mecs qui roulent, pas juste pour faire joli sur Instagram 🔥
Commande très bien passé, les goodies en plus dansle carton ça fait toujours plaisirs.
De trés bonne qualité ! Je recommande vivement 🤟
Frequently asked questions.
The delivery time
The delivery time
If the item is in stock in our workshop, it will be shipped within 1 business day.
If the item is in stock in EUROPE with our suppliers, it will be shipped within 2 business days.
If the item is imported from the USA, delivery will take between 3 and 5 weeks.
Once the item has been shipped, it takes 2 to 3 business days for Colissimo delivery and 2 to 5 business days for Mondial Relay delivery.
I'm not sure the part is for my Harley
I'm not sure the part is for my Harley
Are you unsure about the compatibility of the part you want with your Harley?
Contact us via the contact form, instant messaging, or by phone at 07 61 32 37 93.
We will help you find the right part for your Harley Davidson.
Returns?
Returns?
You have a legal period of 14 days to change your mind.
To return an item, it must be in its original, unused condition and in its original, undamaged packaging.
Return shipping costs are at your expense.
442 Motor & Craft
Harley Davidson specialist workshop in Le Beausset, southern France. We have been equipping, repairing, and customizing your Harley Davidson for over 3 years.
If you can't come to 442, we'll come to you! Purchase the same parts as our workshop customers directly on our website.
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Troubleshooting, servicing, complete preparation or accessory installation, we have been at your service since 2021
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