{"product_id":"hkk-indore-long-punjab-small-mouth-silencer-j-series","title":"HKK Indore Long Punjab Small Mouth Silencer for Royal Enfield J-Series – Chrome \u0026 Black","description":"\u003cp\u003eGive your Royal Enfield J-Series motorcycle a long, traditional Punjab-style exhaust appearance with the \u003cstrong\u003eHKK Indore Long Punjab Small Mouth Silencer\u003c\/strong\u003e. Its extended cylindrical body and smaller 45-size outlet create a cleaner, more restrained rear profile than a Big Mouth Long Punjab silencer.\u003c\/p\u003e\n\n\u003cp\u003eChoose \u003cstrong\u003eChrome\u003c\/strong\u003e for a bright classic finish or \u003cstrong\u003eBlack\u003c\/strong\u003e for a darker custom look. This silencer is made for compatible Royal Enfield Classic 350 Reborn, Bullet 350 J-Series\/New Standard and Meteor 350 motorcycles.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e This is an HKK Indore aftermarket silencer. It is not a Royal Enfield genuine or OEM exhaust.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eLong Punjab \/ Long Punjabi silencer design\u003c\/li\u003e\n  \u003cli\u003eSmall Mouth 45-size outlet\u003c\/li\u003e\n  \u003cli\u003eMade for compatible Royal Enfield J-Series 350 motorcycles\u003c\/li\u003e\n  \u003cli\u003eAvailable in Chrome and Black\u003c\/li\u003e\n  \u003cli\u003eLong cylindrical body for a traditional custom appearance\u003c\/li\u003e\n  \u003cli\u003eHKK Indore “Old Is Gold” branding\u003c\/li\u003e\n  \u003cli\u003eModel-specific mounting arrangement\u003c\/li\u003e\n  \u003cli\u003eOne rear silencer supplied\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAvailable Variants\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eFinish\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eHKK Code\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eAppearance\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eChrome\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eHKM5A\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eBright polished traditional finish\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eHKM5B\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eDark custom finish\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eConfirmed Compatibility\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eMotorcycle\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eGeneration\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eFitment Note\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eRoyal Enfield Classic 350 Reborn\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eJ-Series 350\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eFor compatible Reborn exhaust connection and mounting layout.\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eRoyal Enfield Bullet 350 \/ New Standard\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eJ-Series 350\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eFor the new J-Series Bullet 350; not for the older UCE Standard.\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eRoyal Enfield Meteor 350\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eJ-Series 350\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eVerify the existing silencer joint and mounting position before fitting.\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eImportant Generation Check\u003c\/h2\u003e\n\u003cp\u003eThis product is for compatible \u003cstrong\u003eJ-Series 350\u003c\/strong\u003e motorcycles. Do not order it only by the words “Classic,” “Bullet” or “Standard,” because older UCE motorcycles use a different exhaust layout.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClassic 350 Reborn:\u003c\/strong\u003e J-Series application\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNew Bullet 350 \/ New Standard:\u003c\/strong\u003e J-Series application\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeteor 350:\u003c\/strong\u003e J-Series application\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOlder Classic, Electra and Bullet Standard:\u003c\/strong\u003e UCE models require a different silencer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCheck Before Ordering\u003c\/h2\u003e\n\u003cp\u003eBefore placing the order, verify:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYour exact motorcycle model\u003c\/li\u003e\n  \u003cli\u003eManufacturing year\u003c\/li\u003e\n  \u003cli\u003eJ-Series engine generation\u003c\/li\u003e\n  \u003cli\u003eExisting bend-pipe and silencer joint\u003c\/li\u003e\n  \u003cli\u003eMounting-bracket position\u003c\/li\u003e\n  \u003cli\u003eClamp, gasket and spacer requirements\u003c\/li\u003e\n  \u003cli\u003eWhether the original catalytic-converter arrangement is retained\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFitment Not Confirmed\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHunter 350\u003c\/li\u003e\n  \u003cli\u003eGoan Classic 350\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese motorcycles also belong to the wider J-Series family, but fitment should not be assumed without confirming the inlet, bracket and clearance.\u003c\/p\u003e\n\n\u003ch2\u003eDo Not Order For\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eClassic 350 UCE\u003c\/li\u003e\n  \u003cli\u003eClassic 500 UCE\u003c\/li\u003e\n  \u003cli\u003eBullet Standard 350 UCE\u003c\/li\u003e\n  \u003cli\u003eBullet Standard 500 UCE\u003c\/li\u003e\n  \u003cli\u003eElectra 350 \/ 500 UCE\u003c\/li\u003e\n  \u003cli\u003eThunderbird 350 \/ 500\u003c\/li\u003e\n  \u003cli\u003eHimalayan 411 or Scram 411\u003c\/li\u003e\n  \u003cli\u003eHimalayan 450 or Guerrilla 450\u003c\/li\u003e\n  \u003cli\u003eInterceptor 650 or Continental GT 650\u003c\/li\u003e\n  \u003cli\u003eSuper Meteor 650, Shotgun 650, Bear 650 or Classic 650\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSmall Mouth vs Big Mouth\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n  \u003ctr\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eFeature\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eSmall Mouth\u003c\/th\u003e\n    \u003cth style=\"border:1px solid #ddd;padding:8px;text-align:left;\"\u003eBig Mouth\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eOutlet Appearance\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eSmaller, cleaner outlet profile\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eLarger, more aggressive opening\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eRear Styling\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eTraditional and more restrained\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eBolder visual appearance\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eThis Listing\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003e\u003cstrong\u003eYes — 45-size Small Mouth\u003c\/strong\u003e\u003c\/td\u003e\n    \u003ctd style=\"border:1px solid #ddd;padding:8px;\"\u003eNo\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat This Product Is\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOne HKK Indore Long Punjab Small Mouth silencer\u003c\/li\u003e\n  \u003cli\u003eA long-body aftermarket exhaust component\u003c\/li\u003e\n  \u003cli\u003eA 45-size small-outlet design\u003c\/li\u003e\n  \u003cli\u003eAvailable in Chrome or Black\u003c\/li\u003e\n  \u003cli\u003eMade for compatible J-Series 350 motorcycles listed above\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat This Product Is Not\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eNot a Royal Enfield genuine silencer\u003c\/li\u003e\n  \u003cli\u003eNot a complete exhaust system\u003c\/li\u003e\n  \u003cli\u003eNot a bend pipe or header pipe\u003c\/li\u003e\n  \u003cli\u003eNot a catalytic converter\u003c\/li\u003e\n  \u003cli\u003eNot a Big Mouth Long Punjab silencer\u003c\/li\u003e\n  \u003cli\u003eNot compatible with older UCE motorcycles\u003c\/li\u003e\n  \u003cli\u003eNot a pair of silencers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDesign and Finish\u003c\/h2\u003e\n\u003cp\u003eThe extended Long Punjab body gives your motorcycle a stretched, old-school exhaust appearance. The 45-size Small Mouth outlet keeps the rear profile neater than a large open-mouth design.\u003c\/p\u003e\n\n\u003cp\u003eThe Chrome version is supplied under HKK code \u003cstrong\u003eHKM5A\u003c\/strong\u003e. The Black version is supplied under HKK code \u003cstrong\u003eHKM5B\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSound Expectations\u003c\/h2\u003e\n\u003cp\u003eThe final exhaust note can vary with the motorcycle, bend pipe, catalytic converter, internal baffle construction, engine condition and installation. A smaller outlet does not by itself guarantee a particular volume or bass level.\u003c\/p\u003e\n\n\u003cp\u003ePlease review the available sound video before ordering when exhaust tone is your main buying priority. No fixed decibel level, exact baffle count or guaranteed sound character is promised.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × HKK Indore Long Punjab Small Mouth silencer in the selected finish\u003c\/li\u003e\n  \u003cli\u003eAttached mounting bracket\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Confirmed as Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eBend pipe or header pipe\u003c\/li\u003e\n  \u003cli\u003eExhaust clamp\u003c\/li\u003e\n  \u003cli\u003eExhaust gasket or sealing sleeve\u003c\/li\u003e\n  \u003cli\u003eMounting bolt, nut or washer\u003c\/li\u003e\n  \u003cli\u003eSpacer\u003c\/li\u003e\n  \u003cli\u003eCatalytic converter\u003c\/li\u003e\n  \u003cli\u003eHeat shield\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts You May Need During Installation\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eCorrect-size exhaust clamp\u003c\/li\u003e\n  \u003cli\u003eExhaust joint gasket or sealing sleeve\u003c\/li\u003e\n  \u003cli\u003eMounting bolt, washer, nut or spacer\u003c\/li\u003e\n  \u003cli\u003eThe original compatible J-Series bend pipe in reusable condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProfessional installation is recommended.\u003c\/li\u003e\n  \u003cli\u003eCompare the silencer inlet and bracket with the existing exhaust before fitting.\u003c\/li\u003e\n  \u003cli\u003eEnsure the bracket aligns without forcing or bending the silencer.\u003c\/li\u003e\n  \u003cli\u003eDo not drill, cut or weld the silencer before confirming fitment.\u003c\/li\u003e\n  \u003cli\u003eCheck clearance from the centre stand, swingarm, rear footrest and brake components.\u003c\/li\u003e\n  \u003cli\u003eInspect the joint for exhaust leakage after installation.\u003c\/li\u003e\n  \u003cli\u003eRecheck the mounting hardware after the first full heat cycle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCare and Maintenance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAllow the silencer to cool before cleaning.\u003c\/li\u003e\n  \u003cli\u003eUse mild automotive shampoo and a soft microfibre cloth.\u003c\/li\u003e\n  \u003cli\u003eAvoid acidic cleaners, steel wool and abrasive pads.\u003c\/li\u003e\n  \u003cli\u003eDry the finish after washing.\u003c\/li\u003e\n  \u003cli\u003eRemove mud and road contamination promptly.\u003c\/li\u003e\n  \u003cli\u003eUse a finish-safe polish suitable for Chrome or Black.\u003c\/li\u003e\n  \u003cli\u003eInspect the bracket and clamp periodically.\u003c\/li\u003e\n  \u003cli\u003eHeat-related finish changes may occur near hotter sections during use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Fitment and Return Note\u003c\/h2\u003e\n\u003cp\u003eThis is an aftermarket exhaust product. Verify your motorcycle model, J-Series generation, manufacturing year, silencer connection, mounting position and required hardware before installation.\u003c\/p\u003e\n\n\u003cp\u003eDo not start the motorcycle until the product and fitment have been checked. Once installed and used, the silencer may develop clamp marks, mounting marks, carbon deposits, soot or heat-related finish changes.\u003c\/p\u003e\n\n\u003ch2\u003eCompliance Note\u003c\/h2\u003e\n\u003cp\u003eAftermarket exhaust noise and emission requirements can vary depending on the motorcycle configuration and local regulations. No road-use, noise, BS6 or emission approval should be assumed unless supported by product-specific certification.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs this a genuine Royal Enfield silencer?\u003c\/h3\u003e\n\u003cp\u003eNo. This is an HKK Indore aftermarket silencer for compatible Royal Enfield J-Series motorcycles.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is a Long Punjab Small Mouth silencer?\u003c\/h3\u003e\n\u003cp\u003eIt is an extended Punjab-style silencer with a smaller outlet opening, chosen for its traditional long-body appearance and cleaner rear profile.\u003c\/p\u003e\n\n\u003ch3\u003eWhich motorcycles does it fit?\u003c\/h3\u003e\n\u003cp\u003eIt is made for compatible Classic 350 Reborn, Bullet 350 J-Series\/New Standard and Meteor 350 applications.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it fit the old Bullet Standard 350?\u003c\/h3\u003e\n\u003cp\u003eNo. The older Bullet Standard uses the UCE platform. This listing is for the newer J-Series Bullet 350.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it fit Classic 350 UCE?\u003c\/h3\u003e\n\u003cp\u003eNo. Choose a UCE-specific silencer for the older Classic 350.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it fit Hunter 350?\u003c\/h3\u003e\n\u003cp\u003eFitment is not confirmed. Please do not order for Hunter 350 without matching the inlet and mounting bracket.\u003c\/p\u003e\n\n\u003ch3\u003eIs it available in Chrome and Black?\u003c\/h3\u003e\n\u003cp\u003eYes. Select the required finish before adding the product to the cart.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the Chrome SKU?\u003c\/h3\u003e\n\u003cp\u003eThe Chrome variant is \u003cstrong\u003eHKM5A\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the Black SKU?\u003c\/h3\u003e\n\u003cp\u003eThe Black variant is \u003cstrong\u003eHKM5B\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eIs this Small Mouth or Big Mouth?\u003c\/h3\u003e\n\u003cp\u003eThis is the Small Mouth version with the factory description showing a 45-size outlet.\u003c\/p\u003e\n\n\u003ch3\u003eIs this one silencer or a pair?\u003c\/h3\u003e\n\u003cp\u003eThis listing is for one silencer.\u003c\/p\u003e\n\n\u003ch3\u003eIs this a complete exhaust system?\u003c\/h3\u003e\n\u003cp\u003eNo. This is the rear silencer only.\u003c\/p\u003e\n\n\u003ch3\u003eIs the bend pipe included?\u003c\/h3\u003e\n\u003cp\u003eNo bend pipe is shown or confirmed as included.\u003c\/p\u003e\n\n\u003ch3\u003eIs the clamp included?\u003c\/h3\u003e\n\u003cp\u003eThe exhaust clamp is not confirmed as included. Check your existing hardware before installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat sound does it produce?\u003c\/h3\u003e\n\u003cp\u003eSound depends on the motorcycle, internal construction, bend pipe, catalytic converter and installation. Review the sound video before ordering when sound is your main priority.\u003c\/p\u003e\n\n\u003ch3\u003eWill it improve power or mileage?\u003c\/h3\u003e\n\u003cp\u003eThis product is primarily intended to change the motorcycle’s exhaust appearance and sound. No specific power, torque or mileage improvement is promised.\u003c\/p\u003e\n\n\u003ch3\u003eCan it be returned after installation?\u003c\/h3\u003e\n\u003cp\u003ePlease review the current Under The Hood return policy before ordering. Installed exhaust parts can show immediate mounting, carbon and heat marks.\u003c\/p\u003e\n\n\u003ch2\u003eBuyer Search Names\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHKK Indore Long Punjab Small Mouth silencer\u003c\/li\u003e\n  \u003cli\u003eHKM5A chrome silencer\u003c\/li\u003e\n  \u003cli\u003eHKM5B black silencer\u003c\/li\u003e\n  \u003cli\u003eClassic 350 Reborn Long Punjab silencer\u003c\/li\u003e\n  \u003cli\u003eBullet 350 J-Series Long Punjab exhaust\u003c\/li\u003e\n  \u003cli\u003eNew Standard 350 long silencer\u003c\/li\u003e\n  \u003cli\u003eMeteor 350 Long Punjab silencer\u003c\/li\u003e\n  \u003cli\u003eJ-Series small mouth exhaust\u003c\/li\u003e\n  \u003cli\u003e45 mouth Long Punjab silencer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003csmall\u003eRoyal Enfield and the listed motorcycle model names are trademarks or model names of their respective owner. This is an aftermarket HKK Indore product and is not a Royal Enfield genuine spare part.\u003c\/small\u003e\u003c\/p\u003e","brand":"HKK Indore","offers":[{"title":"Chrome","offer_id":51660575080743,"sku":"HKM5A","price":0.0,"currency_code":"INR","in_stock":false},{"title":"Black","offer_id":51660575113511,"sku":"HKM5B","price":0.0,"currency_code":"INR","in_stock":false}],"url":"https:\/\/underthehood.co.in\/products\/hkk-indore-long-punjab-small-mouth-silencer-j-series","provider":"UNDER THE HOOD","version":"1.0","type":"link"}