{"product_id":"leovince-header-pipe-suzuki-drz4s-sm-80076","title":"LeoVince - Header Pipe - Suzuki DR-Z4S","description":"\u003ch1\u003eLeoVince Header Pipe for the 2025+ Suzuki DR-Z4S\u003c\/h1\u003e\n\u003cp\u003eThe LeoVince Header Pipe (80076) is a high-performance, unrestricted front exhaust manifold designed specifically for the heavily updated 2025+ Suzuki DR-Z4S and DR-Z4SM platforms. By eliminating the heavy and restrictive factory catalytic converter, this racing header drastically improves exhaust gas flow, reduces backpressure, and allows the newly redesigned Suzuki engine to breathe properly.\u003c\/p\u003e\n\u003cp id=\"p-rc_c3378f2c8b56bc96-382\"\u003e\u003cspan class=\"citation-926 citation-end-926\"\u003eManufactured from high-grade AISI 304 stainless steel, the tubing is precision-formed and TIG-welded to ensure maximum thermal resistance and durability under extreme off-road conditions.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e Dropping the bulky factory catalyst sheds 2.23 lbs of dead weight from the motorcycle's chassis. \u003cspan class=\"citation-925 citation-end-925\"\u003eThe 80076 header is highly versatile and engineered to be fully compatible with either the OEM Suzuki muffler or a LeoVince aftermarket slip-on exhaust, allowing you to upgrade your system in stages without buying a full system all at once.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch4\u003eFeatures:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCatalyst Elimination:\u003c\/b\u003e Removes the restrictive factory catalytic converter for significantly improved throttle response and top-end power.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eWeight Reduction:\u003c\/b\u003e Sheds 2.23 lbs compared to the OEM header assembly, improving the bike's power-to-weight ratio.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_c3378f2c8b56bc96-383\"\u003e\u003cb\u003ePremium Construction:\u003c\/b\u003e \u003cspan class=\"citation-924 citation-end-924\"\u003eFormed from high-temperature resistant AISI 304 stainless steel and TIG-welded for maximum strength.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDual Compatibility:\u003c\/b\u003e Designed to mate perfectly with the factory stock muffler or any LeoVince slip-on exhaust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_c3378f2c8b56bc96-384\"\u003e\u003cb\u003eCorrosion Resistant:\u003c\/b\u003e \u003cspan class=\"citation-923 citation-end-923\"\u003eFeatures a polished raw finish that resists rust and withstands heavy off-road abuse.\u003csup class=\"superscript\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 style=\"text-align: center;\"\u003e\u003cspan class=\"citation-923 citation-end-923\"\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline; color: rgb(215, 65, 35);\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/LeoVince_Instructions_Suzuki_DR-Z4S_Header_80076.pdf?v=1789073235\" title=\"LeoVince installation instructions for the Suzuki DR-Z4S header pipe available at TMBR MOTO.\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/LeoVince_Instructions_Suzuki_DR-Z4S_Header_80076.pdf?v=1789073235\" title=\"LeoVince installation instructions for the Suzuki DR-Z4S header pipe available at TMBR MOTO.\" rel=\"noopener\" target=\"_blank\"\u003eLeoVince Installation Instructions for the Suzuki DR-Z4S Header Pipe\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003ch4\u003e\n\u003cbr\u003eWhat's in the Box:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1x LeoVince Stainless Steel Header Pipe\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation Hardware Kit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003ci\u003eNote: Does not include a muffler\/slip-on\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eNote: Utilizes the stock DR-Z4S heat shield\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ch4\u003e2025–2026 – Suzuki DR-Z4S\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ch4\u003e2025–2026 – Suzuki DR-Z4SM\u003c\/h4\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment Notes:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eThe Fueling Equation:\u003c\/b\u003e When you install a free-flowing, decat header on a modern, emissions-choked motorcycle like the 2025 DR-Z4S, you are drastically increasing the volume of air escaping the engine. The factory ECU is programmed to run incredibly lean from the factory to pass strict Euro 5+ emissions standards. By adding this header without adjusting the fueling, the bike will run even leaner, which can lead to excessive engine heat, popping on deceleration, and a loss of low-end torque. To get the actual performance benefits of this header, you must pair it with a proper aftermarket ECU flash or a fuel controller to richen the air\/fuel mixture.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCheck Engine Light:\u003c\/b\u003e Because the modern DR-Z4S utilizes an advanced emissions system with multiple sensors, removing the catalytic converter will likely trigger a Check Engine light (CEL) on your dashboard. This is a normal byproduct of modifying the exhaust on a modern compliant motorcycle. An aftermarket ECU flash or a lambda sensor bypass dongle will be required to clear the dash light for track and competition use.\u003c\/p\u003e\n\u003cp id=\"p-rc_c3378f2c8b56bc96-386\"\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp id=\"p-rc_c3378f2c8b56bc96-386\"\u003e\u003cstrong\u003eO2 Sensor Bungs: \u003c\/strong\u003eThis header has two O2 Sensor bungs. It comes with one bung plug. In the case that your ECU tune eliminates the O2 sensor altogether, you will need one more bung plug.  \u003ca href=\"https:\/\/www.tmbrmoto.com\/products\/tmbr-moto-m12x1-25mm-exhaust-o2-sensor-bung-plug\" title=\"Exhaust O2 sensor M12 bung plugs for capping unused exhaust bungs available at TMBR MOTO.\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTMBR MOTO M12 x 1.25 Bung Plugs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003ca href=\"https:\/\/www.tmbrmoto.com\/collections\/leo-vince\" title=\"Shop TMBR MOTO for motorcycle exhaust components from LeoVince.\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/LEO_BANNERS.jpg?v=1779298668\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/MADE_IN_POLAND.jpg?v=1761542556\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003ePart Number: \u003cmeta charset=\"utf-8\"\u003e80076\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"LeoVince","offers":[{"title":"Default Title","offer_id":48263540310181,"sku":"LEOV-HEADR-SUZ-DRZ4S","price":339.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/5720\/1317\/files\/LeoVince_Suzuki_DRZ4S_Header_Installed_80076.jpg?v=1789074592","url":"https:\/\/www.tmbrmoto.com\/products\/leovince-header-pipe-suzuki-drz4s-sm-80076","provider":"TMBR MOTO","version":"1.0","type":"link"}