{"product_id":"oyhqes-muffler-packing-3-pack-21-6-x-11-3-x-0-4-in-cut-to-fit-fiberglass-mats-for-2-4-stroke-bikes-heat-tolerant-noise-reduc","title":"oyhqes Muffler Packing 3-Pack — 21.6 x 11.3 x 0.4 in Cut-to-Fit Fiberglass Mats for 2- \u0026 4-Stroke Bikes, Heat-Tolerant Noise Reduc","description":"\u003cp\u003e\u003cstrong\u003eoyhqes muffler packing 3-pack is a trim-to-fit alkali-free fiberglass mat designed to lower exhaust noise, resist heat, and restore smoother throttle response on most 2‑stroke and 4‑stroke bikes and ATVs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you ride daily, tune your exhaust, or need a straightforward replacement for worn-out packing, these mats are cuttable, heat-tolerant, and built to fit common muffler housings. Each sheet measures 21.6 x 11.3 x 0.4 inches (55 x 34 x 1 cm) so you can trim them to the internal shape of your silencer. Constructed from alkali‑free glass fiber, they focus on consistent thermal stability and long service life while maintaining exhaust flow characteristics.\u003c\/p\u003e\n\n\u003ch3\u003eHow will this muffler packing change my bike's sound and ride?\u003c\/h3\u003e\n\u003cp\u003eInstalling these fiberglass mats reduces harsh resonance and lowers perceived exhaust volume without altering the engine’s operating parameters. The material soaks up and disperses sound energy while still allowing exhaust gases to pass, producing a more controlled tone and smoother acceleration feel.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAttenuates high-frequency harshness for a cleaner exhaust note\u003c\/li\u003e\n  \u003cli\u003eMinimizes rattles and boom at mid-to-high RPMs\u003c\/li\u003e\n  \u003cli\u003eMaintains free flow to preserve throttle response\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these sheets fit my muffler, and how easy is trimming?\u003c\/h3\u003e\n\u003cp\u003eThe 21.6 x 11.3 x 0.4 in size is intended as a universal starting sheet that you can cut to the exact internal contours of most motorcycle and ATV silencers. The fiber mat is pliable enough to shape with scissors or a utility knife, making DIY installation straightforward for home mechanics and shops.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard sheet size fits most mainstream muffler profiles\u003c\/li\u003e\n  \u003cli\u003eCut-to-fit design lets you match internal diameters and lengths\u003c\/li\u003e\n  \u003cli\u003eWorks with both 2‑stroke and 4‑stroke applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the material withstand heat and wear over time?\u003c\/h3\u003e\n\u003cp\u003eMade from alkali‑free fiberglass, the packing is optimized for high-temperature environments commonly found inside exhaust systems. It resists thermal degradation and helps shield the muffler internals from localized overheating while retaining its structure under repeated heat cycles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlkali‑free glass fiber for improved heat endurance\u003c\/li\u003e\n  \u003cli\u003eReduces risk of overheating damage inside the silencer\u003c\/li\u003e\n  \u003cli\u003eDesigned for consistent performance across many heat cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this packing affect engine performance or fuel economy?\u003c\/h3\u003e\n\u003cp\u003eWhen installed correctly, these mats are formulated to preserve exhaust flow so the engine’s power delivery and fuel efficiency remain essentially unchanged. By optimizing back pressure, some riders notice crisper throttle response without sacrificing peak output.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains proper exhaust flow to avoid power loss\u003c\/li\u003e\n  \u003cli\u003eCan improve throttle response by stabilizing back pressure\u003c\/li\u003e\n  \u003cli\u003eSupports longer muffler life by protecting internal components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The oyhqes muffler packing 3-pack suits riders, mechanics, and small shops looking for an affordable, universal packing solution for motorcycles, dirt bikes, and ATVs. It is ideal if you need to replace exhausted or damaged packing, quiet an aggressive aftermarket exhaust, or tune the tone of your silencer while retaining reliable heat resistance and simple installation. Note: manual measurement may produce slight size variances and colors can vary by display. Always trim carefully and follow safe installation practices when working on hot or pressurized systems.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this muffler packing safe for 2‑stroke and 4‑stroke engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The alkali‑free fiberglass construction is compatible with both 2‑stroke and 4‑stroke exhaust systems and designed for high‑temperature use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I trim the sheet to fit my muffler?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Measure your muffler interior, mark the sheet, then cut with scissors or a utility knife. Fit, adjust, and compress as needed before reassembly.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"oyhqes","offers":[{"title":"Default Title","offer_id":48084465746078,"sku":"B0GZZK7FQ5","price":30.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/oyhqes-muffler-packing-front-sheet.jpg?v=1785856339","url":"https:\/\/northtrailauto.ca\/products\/oyhqes-muffler-packing-3-pack-21-6-x-11-3-x-0-4-in-cut-to-fit-fiberglass-mats-for-2-4-stroke-bikes-heat-tolerant-noise-reduc","provider":"North Trail Auto","version":"1.0","type":"link"}