{"product_id":"hkk-indore-hkmb6c-dual-sensor-long-c-bend-pipe-j-series","title":"HKK Indore HKMB6C Dual-Sensor Long C Bend Pipe for Royal Enfield J-Series 350","description":"\u003cp\u003eReplace the restrictive or damaged original exhaust header with the \u003cstrong\u003eHKK Indore HKMB6C Long Bend “C” Pipe\u003c\/strong\u003e, made for compatible Royal Enfield J-Series 350 motorcycles using a \u003cstrong\u003edual oxygen-sensor exhaust arrangement\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe pipe combines a bright chrome bend with a long black protective heat shield carrying HKK “Old Is Gold” styling. Its dual threaded sensor ports make it suitable for the supported newer exhaust configuration used on compatible Classic 350 Reborn, Meteor 350 and New Bullet 350 \/ New Standard motorcycles.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e This is an HKK Indore aftermarket bend pipe. It is not a Royal Enfield genuine or OEM exhaust component.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHKK Indore manufacturer code \u003cstrong\u003eHKMB6C\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eLong Bend “C” type exhaust\/header pipe\u003c\/li\u003e\n  \u003cli\u003eDual oxygen-sensor ports\u003c\/li\u003e\n  \u003cli\u003eChrome pipe with black protective heat shield\u003c\/li\u003e\n  \u003cli\u003eHKK “Old Is Gold” cut-out styling on the shield\u003c\/li\u003e\n  \u003cli\u003eMade for compatible Royal Enfield J-Series 350 applications\u003c\/li\u003e\n  \u003cli\u003eReplacement or custom exhaust conversion component\u003c\/li\u003e\n  \u003cli\u003eOne complete bend-pipe assembly supplied\u003c\/li\u003e\n\u003c\/ul\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;\"\u003eRequired Configuration\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;\"\u003eUse only where the motorcycle requires the matching dual-sensor bend-pipe arrangement.\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;\"\u003eMatch both sensor positions, engine-end joint and silencer connection before installation.\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 compatible newer dual-sensor models; not for the older UCE Bullet Standard.\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eImportant Dual-Sensor Check\u003c\/h2\u003e\n\u003cp\u003eThis is the \u003cstrong\u003edouble-sensor\u003c\/strong\u003e version. Before ordering, inspect your existing bend pipe and confirm that your motorcycle uses two oxygen-sensor locations matching this pipe.\u003c\/p\u003e\n\n\u003cp\u003eDo not order this version for a motorcycle using:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eA single-sensor bend pipe\u003c\/li\u003e\n  \u003cli\u003eA bend pipe without an oxygen-sensor port\u003c\/li\u003e\n  \u003cli\u003eA different sensor spacing or thread arrangement\u003c\/li\u003e\n  \u003cli\u003eAn older UCE exhaust system\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCheck Before Ordering\u003c\/h2\u003e\n\u003cp\u003ePlease verify the following before placing your order:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eExact motorcycle model and manufacturing year\u003c\/li\u003e\n  \u003cli\u003eJ-Series 350 platform\u003c\/li\u003e\n  \u003cli\u003eTwo oxygen sensors are used on the existing exhaust\u003c\/li\u003e\n  \u003cli\u003eSensor positions and thread size match\u003c\/li\u003e\n  \u003cli\u003eEngine-head connection and flange arrangement match\u003c\/li\u003e\n  \u003cli\u003eRear silencer connection matches\u003c\/li\u003e\n  \u003cli\u003eWhether the original catalytic converter is being retained or replaced\u003c\/li\u003e\n  \u003cli\u003eRequired exhaust gaskets and mounting hardware\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 use related J-Series architecture, but the pipe routing, bracket position, silencer connection and sensor arrangement must be matched before ordering.\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 \/ 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\u003eWhat This Product Is\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOne HKK Indore aftermarket exhaust bend\/header pipe\u003c\/li\u003e\n  \u003cli\u003eA long C-type pipe for supported J-Series 350 models\u003c\/li\u003e\n  \u003cli\u003eA dual-sensor exhaust pipe with two threaded sensor ports\u003c\/li\u003e\n  \u003cli\u003eA chrome pipe with an attached black heat shield\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 rear silencer or muffler\u003c\/li\u003e\n  \u003cli\u003eNot a complete exhaust system with silencer\u003c\/li\u003e\n  \u003cli\u003eNot a Royal Enfield genuine bend pipe\u003c\/li\u003e\n  \u003cli\u003eNot a single-sensor pipe\u003c\/li\u003e\n  \u003cli\u003eNot a no-sensor carburettor-model pipe\u003c\/li\u003e\n  \u003cli\u003eNot an exhaust sensor\u003c\/li\u003e\n  \u003cli\u003eNot suitable for older UCE motorcycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eDesign and Finish\u003c\/h2\u003e\n\u003cp\u003eThe HKMB6C uses a bright chrome-finish curved pipe with a long black outer shield. The shield helps cover the hot pipe section and adds a model-specific custom appearance through its HKK “Old Is Gold” cut-out design.\u003c\/p\u003e\n\n\u003cp\u003eThe product label identifies it as:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCode:\u003c\/strong\u003e HKMB6C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDescription:\u003c\/strong\u003e Long Bend “C” C+B Pipe\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensor Type:\u003c\/strong\u003e Double Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eExhaust and Sound Expectations\u003c\/h2\u003e\n\u003cp\u003eChanging the original bend pipe can alter exhaust flow and sound, particularly when combined with an aftermarket silencer. The final result depends on the silencer, catalytic-converter arrangement, engine condition and installation.\u003c\/p\u003e\n\n\u003cp\u003eNo fixed loudness, performance or mileage result is promised. Review a vehicle-specific sound video before ordering when the exhaust note is your main consideration.\u003c\/p\u003e\n\n\u003ch2\u003eWhat’s Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × HKK Indore HKMB6C Long C bend pipe\u003c\/li\u003e\n  \u003cli\u003eAttached black HKK heat shield\u003c\/li\u003e\n  \u003cli\u003eTwo threaded oxygen-sensor provisions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eNot Included\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eOxygen sensors\u003c\/li\u003e\n  \u003cli\u003eRear silencer\u003c\/li\u003e\n  \u003cli\u003eEngine-head exhaust gasket\u003c\/li\u003e\n  \u003cli\u003eSilencer-joint gasket or sealing sleeve\u003c\/li\u003e\n  \u003cli\u003eMounting bolts, nuts or washers unless physically supplied\u003c\/li\u003e\n  \u003cli\u003eECU tuning or installation service\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 engine-head exhaust gasket\u003c\/li\u003e\n  \u003cli\u003eSilencer-joint gasket or sealing sleeve\u003c\/li\u003e\n  \u003cli\u003eCorrect mounting hardware\u003c\/li\u003e\n  \u003cli\u003eAnti-seize compound suitable for oxygen-sensor threads\u003c\/li\u003e\n  \u003cli\u003eCompatible rear silencer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eProfessional installation is strongly recommended.\u003c\/li\u003e\n  \u003cli\u003eAllow the engine and exhaust to cool completely before removal.\u003c\/li\u003e\n  \u003cli\u003eCompare both sensor positions with the original pipe before fitting.\u003c\/li\u003e\n  \u003cli\u003eTransfer the oxygen sensors carefully without twisting or damaging their wiring.\u003c\/li\u003e\n  \u003cli\u003eDo not interchange the sensors unless the service procedure allows it.\u003c\/li\u003e\n  \u003cli\u003eUse the correct sensor and exhaust-gasket torque specifications.\u003c\/li\u003e\n  \u003cli\u003eConfirm adequate clearance from the frame, engine, brake pedal and footrests.\u003c\/li\u003e\n  \u003cli\u003eCheck for exhaust leakage and warning lights after installation.\u003c\/li\u003e\n  \u003cli\u003eRecheck all fasteners 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 pipe to cool fully before cleaning.\u003c\/li\u003e\n  \u003cli\u003eUse mild automotive shampoo and a soft microfibre cloth.\u003c\/li\u003e\n  \u003cli\u003eAvoid acidic wheel cleaners and abrasive pads.\u003c\/li\u003e\n  \u003cli\u003eDry the chrome and black surfaces after washing.\u003c\/li\u003e\n  \u003cli\u003eInspect the sensor ports and wiring periodically.\u003c\/li\u003e\n  \u003cli\u003eCheck the engine-end and silencer-end joints for leakage.\u003c\/li\u003e\n  \u003cli\u003eHeat-related colour change may occur on chrome exhaust pipes during normal use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eImportant Fitment and Return Note\u003c\/h2\u003e\n\u003cp\u003eThis is a model- and sensor-configuration-specific exhaust component. Confirm the motorcycle model, year, dual-sensor arrangement, sensor position, pipe routing and both exhaust joints before installation.\u003c\/p\u003e\n\n\u003cp\u003eDo not start the motorcycle until the fitment has been completely checked. Once installed or heated, the pipe may develop tool marks, sensor-installation marks, carbon deposits or heat-related finish changes.\u003c\/p\u003e\n\n\u003ch2\u003eCompliance Note\u003c\/h2\u003e\n\u003cp\u003eReplacing the original exhaust bend pipe or catalytic-converter section may affect noise, emissions, warning-light behaviour and road-use compliance. Requirements vary by motorcycle and location. No road-use, BS6, emission or PUC 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\u003eWhat is HKMB6C?\u003c\/h3\u003e\n\u003cp\u003eHKMB6C is the HKK Indore code for this Long Bend “C” Chrome + Black double-sensor exhaust pipe.\u003c\/p\u003e\n\n\u003ch3\u003eIs this a silencer?\u003c\/h3\u003e\n\u003cp\u003eNo. This is the bend\/header pipe that connects the engine exhaust outlet to the rear silencer.\u003c\/p\u003e\n\n\u003ch3\u003eWhich motorcycles does it fit?\u003c\/h3\u003e\n\u003cp\u003eIt is intended for compatible dual-sensor versions of Classic 350 Reborn, Meteor 350 and the new Bullet 350 \/ New Standard J-Series.\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 and requires a different bend pipe.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it fit Classic 350 UCE?\u003c\/h3\u003e\n\u003cp\u003eNo. This product is for compatible newer J-Series dual-sensor exhaust arrangements.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it have two sensor ports?\u003c\/h3\u003e\n\u003cp\u003eYes. The product label and physical pipe show two threaded oxygen-sensor provisions.\u003c\/p\u003e\n\n\u003ch3\u003eAre the oxygen sensors included?\u003c\/h3\u003e\n\u003cp\u003eNo. The sensors must be transferred from the motorcycle or purchased separately if required.\u003c\/p\u003e\n\n\u003ch3\u003eIs the heat shield included?\u003c\/h3\u003e\n\u003cp\u003eYes. The displayed pipe includes the attached black HKK “Old Is Gold” heat shield.\u003c\/p\u003e\n\n\u003ch3\u003eIs the rear silencer included?\u003c\/h3\u003e\n\u003cp\u003eNo. This listing is for the bend pipe only.\u003c\/p\u003e\n\n\u003ch3\u003eIs it a free-flow pipe?\u003c\/h3\u003e\n\u003cp\u003eThe pipe may change the exhaust-flow path compared with the original system, but no exact internal or performance specification is promised beyond the physical product shown.\u003c\/p\u003e\n\n\u003ch3\u003eWill it make the motorcycle louder?\u003c\/h3\u003e\n\u003cp\u003eIt may change the exhaust sound, especially when paired with an aftermarket silencer. The final sound depends on the complete exhaust system.\u003c\/p\u003e\n\n\u003ch3\u003eWill it improve power or mileage?\u003c\/h3\u003e\n\u003cp\u003eNo specific horsepower, torque, pickup or mileage improvement is promised.\u003c\/p\u003e\n\n\u003ch3\u003eCan it cause an engine warning light?\u003c\/h3\u003e\n\u003cp\u003eIncorrect sensor installation, damaged wiring, an exhaust leak or an incompatible exhaust configuration may trigger a warning light. Professional installation is recommended.\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 or heated exhaust components can show immediate fitting and heat marks.\u003c\/p\u003e\n\n\u003ch2\u003eBuyer Search Names\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHKK Indore HKMB6C bend pipe\u003c\/li\u003e\n  \u003cli\u003eClassic 350 Reborn dual sensor bend pipe\u003c\/li\u003e\n  \u003cli\u003eMeteor 350 double sensor exhaust pipe\u003c\/li\u003e\n  \u003cli\u003eBullet 350 J-Series dual O2 bend pipe\u003c\/li\u003e\n  \u003cli\u003eNew Standard 350 bend pipe\u003c\/li\u003e\n  \u003cli\u003eJ-Series 350 long C bend pipe\u003c\/li\u003e\n  \u003cli\u003eHKK chrome black exhaust header\u003c\/li\u003e\n  \u003cli\u003eDouble oxygen sensor bend pipe\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":"Default Title","offer_id":51660577308967,"sku":"HKMB6C","price":0.0,"currency_code":"INR","in_stock":false}],"url":"https:\/\/underthehood.co.in\/products\/hkk-indore-hkmb6c-dual-sensor-long-c-bend-pipe-j-series","provider":"UNDER THE HOOD","version":"1.0","type":"link"}