Dr. JEKILL & Mr. HYDE - Silent Track series SLASH CUT - Touring M8 17-26 - Black or chrome
Dr. Jekill & Mr. Hyde 4.5" Track Series Silencers – Pure Performance & Adjustable Sound
Designed for uncompromising performance enthusiasts, Dr. Jekill & Mr. Hyde Track Series silencers are dedicated to racing use only (not street legal). They offer an extreme sound and mechanical experience, ideal for engine tuning and riders seeking maximum power.
Made from stainless steel and developed in Europe with premium materials, these slip-ons guarantee high-end manufacturing quality and a precise fit on original headers and mounts.
Featuring three electronically adjustable sound modes at the touch of a button, they allow switching from an open (very loud / racing) mode to a more discreet closed mode for cruising. Unlike conventional systems, they operate without a Smartbox for full freedom and maximum performance.
The exhaust flow is optimized with reduced back pressure, ensuring a significant power gain and improved engine response. Their 4.5" diameter with Track Series emblem enhances their massive and racing look.
In terms of sound, these silencers deliver a deep and powerful rumble, with attenuated high frequencies for a fuller and more aggressive sound.
The black Slash Cut end caps, treated with matte black ceramic, can be mounted in four different positions thanks to a 90° rotation system, allowing for advanced style customization.
Key Features:
- Non-street legal racing silencers
- 3 electronic sound modes (open to closed)
- Operation without Smartbox for maximum performance
- Optimized flow and reduced back pressure
- 4.5" body with matte black ceramic finish
- Adjustable Slash Cut end caps (4 positions)
- Deep sound with enhanced bass
- Premium materials and European manufacturing
- Compatible with original headers and mounts
The ultimate choice for demanding riders seeking extreme power, adjustable sound, and high-end quality.
To avoid any compatibility errors, please use the vehicle search function.
Doubts? Questions? [Contact us here]
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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 🤟
Parfait tro beau
Au top.
Superbe qualité
T-shirt super confortable, tissu de très bonne qualité
Très satisfait de mon achat ! Livraison rapide, produit conforme à la description. J’ai bien reçu le support CarPlay pour Low Rider ST (Carpuride 702 Pro) en parfait état.
Il ne me reste plus qu’à attendre la livraison de la moto de ma femme prévue demain (21/03/2026) pour procéder à l’installation.
Hâte de voir le résultat une fois monté !
Parfait .belle finition et facile a monter bravo
Leviers très beaux, je suis satisfait de cette achat comme tout les autres effectué sur ce site.
Comme d'habitude les produits sont vraiment top
et les matériaux sont de qualités
Super qualité au niveaux du tissu
Hâte de voir la future collection
Produit de qualité et société sérieuse, expédition rapide, je recommande les yeux fermé
Il faut une clé spéciale à 4 pans pour pourvoir l’utiliser
(Clé pour vidange).
Repose pieds passager alu noir magnifique, envoi rapide et soigné. Je recommande 442 PARTS.
What is the 442 Motor & Craft?
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.
Workshop
Troubleshooting, servicing, complete preparation or accessory installation, we have been at your service since 2021
Airbrushing
A touch-up? A full paint job? We enhance your Harley Davidsons with passion.
Store
We also sell parts and accessories as well as our 442 brand directly in our store.
Website
Why limit our services only to people near our workshop? No matter where you live, 442 will deliver your parts.
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 Parts