{"product_id":"yamaha-mt09-2021-2023-slipstream-exhaust-system","title":"YAMAHA MT09 (2021-2023) SLIPSTREAM EXHAUST SYSTEM","description":"\u003ch3\u003e\n\u003cmeta charset=\"utf-8\"\u003eCompact by design. Built specifically for the CP3. \u003c\/h3\u003e\n\u003cp\u003eThe 2021-2023 Yamaha MT09 and MT09 SP marked a major evolution of Yamaha's CP3 platform. With an all-new chassis, revised suspension package, updated electronics suite, and sharper overall styling, the third-generation MT09 quickly earned a reputation as one of the most exciting naked bikes on the market.\u003c\/p\u003e\n\u003cp\u003eDespite the improvements, the factory exhaust system remains heavily constrained by emissions, packaging, and noise regulations. The result is an oversized assembly that masks much of the CP3 engine's character while adding unnecessary weight and visual bulk.\u003c\/p\u003e\n\u003cp\u003eThe Kelpi Slipstream exhaust system for the 2021-2023 MT09 platform delivers a more compact appearance, improved performance, and a soundtrack that truly does Yamaha's triple-cylinder engine justice.\u003c\/p\u003e\n\u003cp\u003eUnlike our traditional CP3 exhaust system, the Slipstream utilises an aggressively tucked under-engine layout that keeps the entire system closer to the motorcycle's centreline. The result is a cleaner profile, improved integration, and a purposeful track-inspired aesthetic. It makes the same class leading peak power as our CP3 system, but with the added benefits of stronger low end power, easier fitment, lighter weight, and improved ground clearance. It's also slightly quieter for the rider with the outlet of the muffler staying tucked and pointed outwards rather than kicked upwards. \u003c\/p\u003e\n\u003cp\u003eExpect an aggressive exhaust note (but not obnoxious like the Racefit \/ SC Project CRT), class leading top end power, strong low and mid range performance, and significant weight savings compared to the factory exhaust system.\u003cbr\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKelpi Slipstream vs Kelpi Traditional CP3 Exhaust\u003c\/h2\u003e\n\u003ctable style=\"width: 101.964%; height: 391.875px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 26.5343%; height: 19.5938px;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"width: 34.8375%; height: 19.5938px;\"\u003eSlipstream System\u003c\/th\u003e\n\u003cth style=\"width: 37.9061%; height: 19.5938px;\"\u003eTraditional CP3 System\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 117.562px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 117.562px;\"\u003e\u003cstrong\u003eVisual Profile\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 117.562px;\"\u003eUltra-compact underslung design that remains tucked tightly beneath the motorcycle.\u003cbr\u003e\u003cbr\u003eMuffler outlet positioned beneath the rider footpeg area.\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 117.562px;\"\u003eConventional low-mounted exhaust configuration.\u003cbr\u003e\u003cbr\u003eMuffler outlet positioned alongside the swingarm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 39.1875px;\"\u003e\u003cstrong\u003eHorsepower Gains\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 39.1875px;\"\u003eUp to 12hp peak increase, with a slight boost to the torque curve from down low. \u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 39.1875px;\"\u003eUp to 12hp*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 39.1875px;\"\u003e\u003cstrong\u003eWeight Savings\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 39.1875px;\"\u003eUp to 3.7kg lighter than OEM**\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 39.1875px;\"\u003eUp to 3.2kg lighter than OEM**\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 39.1875px;\"\u003e\u003cstrong\u003eLateral Protrusion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 39.1875px;\"\u003eSubstantially reduced compared to the factory exhaust\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 39.1875px;\"\u003eReduced compared to the factory exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 19.5938px;\"\u003e\u003cstrong\u003ePeak Volume\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 19.5938px;\"\u003e106db (Flanker, no baffle)\u003cbr\u003e101db (Flanker, standard baffle)\u003cbr\u003e98db (Flanker, Quietcore baffle)\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 19.5938px;\"\u003e104db (Shorty, no baffle)\u003cbr\u003e101db (Shorty, standard baffle)\u003cbr\u003e97db (Shorty, Quietcore baffle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 39.1875px;\"\u003e\u003cstrong\u003eMuffler Options\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 39.1875px;\"\u003eFlanker Muffler Only\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 39.1875px;\"\u003eFlanker or Shorty Muffler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 39.1875px;\"\u003e\u003cstrong\u003eCatalytic Converter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 39.1875px;\"\u003eHigh-flow cat included\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 39.1875px;\"\u003eHigh-flow cat included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 26.5343%; height: 39.1875px;\"\u003e\u003cstrong\u003eSensor Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 34.8375%; height: 39.1875px;\"\u003eFactory O2 sensor ready\u003c\/td\u003e\n\u003ctd style=\"width: 37.9061%; height: 39.1875px;\"\u003eFactory O2 sensor ready\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch6\u003e\n\u003cem\u003e* When combined with an ECU reflash\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e** Dependent on muffler + baffle combination\u003cbr\u003e\u003cbr\u003e\u003c\/em\u003e\n\u003c\/h6\u003e\n\u003chr\u003e\n\u003ch2\u003ePerformance Gains for the 2021-2023 MT09\u003c\/h2\u003e\n\u003cp\u003eThe Slipstream system combines optimised exhaust flow, a high-flow catalytic converter, and a removable baffle arrangement to deliver meaningful performance improvements without sacrificing day-to-day rideability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Flanker muffler is supplied with our standard baffle fitted from the factory. This insert can be removed if desired. Customers can also select the optional Quietcore baffle, which replaces the standard insert and further reduces exhaust volume. When the Quietcore option is selected, both baffles are supplied with the exhaust system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhen paired with appropriate tuning, riders can expect:\u003c\/p\u003e\n\u003cp\u003e• Up to 10-12hp peak gains at the rear wheel\u003cbr\u003e• Improved torque across the full rev range\u003cbr\u003e• Smoother on\/off throttle transitions\u003cbr\u003e• Significantly more powerful 1st and 2nd gear \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor normal road use, the Slipstream system can be installed and operated safely using the standard factory ECU calibration when running the supplied baffle. No additional tuning is required, and the system will not trigger warning lights or fault codes for Euro 5+ bikes with two o2 sensors.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor riders combining the exhaust with intake upgrades or operating without a baffle, ECU tuning is recommended to maximise power delivery and overall rideability.\u003c\/p\u003e\n\u003cp\u003eTo support customers looking for the ultimate setup, we've worked closely with Kevin Hope to develop CP3-specific tuning solutions based on extensive dyno development and real-world testing. Contact us directly if you'd like to discuss tuning options.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Slipstream Suits the Gen 3 MT09\u003c\/h2\u003e\n\u003cp\u003eThe Slipstream system was created for riders who want more than just additional noise.\u003c\/p\u003e\n\u003cp\u003eCompared with conventional exhaust layout, Slipstream:\u003c\/p\u003e\n\u003cp\u003e• Sits higher and further beneath the motorcycle\u003cbr\u003e• Removes the large factory collector assembly\u003cbr\u003e• Enhances ground clearance\u003cbr\u003e• Reduces exposed exhaust components\u003cbr\u003e• Creates a cleaner, race-inspired appearance\u003c\/p\u003e\n\u003cp\u003eThe finished result is a lighter, more cohesive package that complements the aggressive styling of the third-generation MT09 without dominating the bike's overall appearance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFlanker Muffler for the Gen 3 MT09\u003c\/h2\u003e\n\u003cp\u003eEvery Slipstream system is supplied with our Flanker muffler, selected specifically for its compact dimensions, premium finish, and aggressive sound characteristics.\u003c\/p\u003e\n\u003cp\u003e• Carbon-fibre end cap with stainless mesh detailing\u003cbr\u003e• Deep triple-cylinder burble at lower RPM\u003cbr\u003e• Sharper, more aggressive note through the upper rev range\u003cbr\u003e• Compact mounting position that complements the Slipstream layout\u003cbr\u003e• Noticeably sportier than stock while remaining comfortable with the supplied baffle\u003cbr\u003e• Optional Quietcore insert available for riders seeking lower sound levels\u003c\/p\u003e\n\u003cp\u003eThe end result is a system that delivers genuine character and presence while remaining practical for regular street use.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eMT09 (2021-2023) Specific Design\u003c\/h2\u003e\n\u003cp\u003eThe Slipstream exhaust has been engineered specifically around the third-generation Yamaha MT09 platform, including both standard MT09 and MT09 SP models produced between 2021 and 2023.\u003c\/p\u003e\n\u003cp\u003e• Dedicated mounting hardware designed specifically for the Gen 3 frame architecture\u003cbr\u003e• Pipe routing optimised around the 2021-2023 chassis geometry\u003cbr\u003e• Compatible with factory O2 sensor configurations used across global markets\u003cbr\u003e• Improved protection and reduced exposure compared to OEM exhaust routing\u003cbr\u003e• Developed exclusively for MT09 and MT09 SP applications\u003c\/p\u003e\n\u003cp\u003eEach kit includes:\u003c\/p\u003e\n\u003cp\u003eHeaders\u003cbr\u003eCollector\u003cbr\u003eLink pipe\u003cbr\u003eHigh-flow catalytic converter\u003cbr\u003eFlanker muffler\u003cbr\u003eSprings and fasteners\u003cbr\u003eRemovable baffle insert\u003cbr\u003eO2 bung + block-off hardware\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eO2 Sensor \u0026amp; Emissions Compatibility\u003c\/h2\u003e\n\u003cp\u003eMT09 models sold between 2021 and 2023 may vary slightly in sensor configuration depending on destination market and emissions requirements.\u003c\/p\u003e\n\u003cp\u003eSlipstream systems are supplied with the required hardware to accommodate factory sensor arrangements, allowing straightforward installation across supported markets.\u003c\/p\u003e\n\u003cp\u003eIf your motorcycle utilises a different sensor arrangement to Australian-delivered bikes, the supplied bung and block-off hardware can be used where required.\u003c\/p\u003e\n\u003cp\u003eCustomers seeking a de-cat version for closed-course or track-only use should contact us directly to discuss available configurations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation \u0026amp; Support\u003c\/h2\u003e\n\u003cp\u003eInstallation can typically be completed in approximately 1-2 hours using common workshop tools, including sockets, hex keys, and standard spanners.\u003c\/p\u003e\n\u003cp\u003eDownload installation instructions below.\u003c\/p\u003e\n\u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%;\"\u003e\u003ciframe style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0;\" title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/7lV48ynDhoA\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e```\u003c\/p\u003e","brand":"Kelpi Custom Moto","offers":[{"title":"Brushed Stainless \/ Flanker","offer_id":48127050547458,"sku":"KCMPCP324SSF1","price":1490.0,"currency_code":"AUD","in_stock":false},{"title":"Brushed Stainless \/ Flanker + Quietcore","offer_id":48127050580226,"sku":"KCMPCP324SSF2","price":1570.0,"currency_code":"AUD","in_stock":false},{"title":"Black Cerakote \/ Flanker","offer_id":48127050612994,"sku":null,"price":1640.0,"currency_code":"AUD","in_stock":false},{"title":"Black Cerakote \/ Flanker + Quietcore","offer_id":48127050645762,"sku":null,"price":1720.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/2888\/9858\/files\/Kelpi_MT09_2021_2022_2023_Exhaust_Seat_Mirrors_Bars2.jpg?v=1785884037","url":"https:\/\/kelpicustoms.com\/products\/yamaha-mt09-2021-2023-slipstream-exhaust-system","provider":"Kelpi Custom Moto","version":"1.0","type":"link"}