{"product_id":"apr-3-76mm-premium-helmholtz-resonator","title":"APR 3\" (76mm) Premium Helmholtz Resonator","description":"\u003cstyle\u003e\n.es-years-header, .es-years-cell { display: table-cell; }\n.es-years-mobile { display: none; }\n@media (max-width: 620px) {\n  .es-years-header, .es-years-cell { display: none !important; }\n  .es-years-mobile { display: block !important; font-size: 13px; color: #666; margin-top: 3px; }\n}\n\u003c\/style\u003e\n\n\u003cdiv style=\"max-width: 920px; margin: 0 auto; font-family: Arial, sans-serif; color: #1f1f1f;\"\u003e\n\n\u003cp style=\"font-size: 18px; line-height: 1.7; margin-bottom: 18px;\"\u003e\n  \u003cstrong style=\"color:#0070f3;\"\u003eAPR\u003c\/strong\u003e’s premium line of Helmholtz Resonators are now available! Perfect for the do-it-yourself enthusiast fabricating a custom exhaust system, these resonators target and cancel out specific frequencies that create drone.\n\u003c\/p\u003e\n\n\u003cp style=\"font-size: 18px; line-height: 1.7; margin-bottom: 28px;\"\u003e\n  Internally the system is open with an small offshoot path leading to the main chamber designed to bounce soundwaves back into the exhaust flow path to eliminate unwanted frequencies. The main exhaust path is a straight through 76mm (3\") pipe with offset inlet and outlet. There are no harsh twists, turns, or baffles to slow exhaust flow. You’ll get full uninterrupted flow for maximum power.\n\u003c\/p\u003e\n\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 20px;\"\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; margin-bottom: 30px;\"\u003e\n  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eSTAINLESS STEEL CONSTRUCTION\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eT304 stainless steel construction.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eSTRAIGHT THROUGH DESIGN\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eUnrestrictive straight through design.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eFREQUENCY CANCELLATION\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eHelmholtz Resonator for frequency (drone) cancellation.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eOFFSET INLET OUTLET\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003e76mm (3”) offset inlet and outlet.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003e110MM EXTERNAL DIMENSIONS\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eRounded square 311mm (12.24”) x 240mm (9.45”) x 110mm (4.33”) external dimensions.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eSTRUCTURAL VISUAL RIDGES\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003eRolled external structural and visual ridges.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eBUILT TO LAST\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003e\u003cstrong\u003eQuality construction\u003c\/strong\u003e — brushed finish, tig-welding throughout, stamped apr logo for long service life and consistent performance.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eFAST US SHIPPING\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003e\u003cstrong\u003eShips from a US warehouse\u003c\/strong\u003e with quick dispatch and tracked delivery to your door.\u003c\/p\u003e\n  \u003c\/div\u003e  \u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa;\"\u003e\n    \u003cp style=\"font-size: 12px; letter-spacing: 1.8px; text-transform: uppercase; color: #0070f3; margin: 0 0 8px; font-weight: bold;\"\u003eBUILT FOR YOUR VEHICLE\u003c\/p\u003e\n    \u003cp style=\"font-size: 16px; line-height: 1.7; margin: 0;\"\u003e\u003cstrong\u003eEngineered by APR\u003c\/strong\u003e specifically for the applications listed below — not a generic universal fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eWhat’s Included\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 18px;\"\u003e\u003c\/div\u003e\n\u003cul style=\"padding-left: 20px; margin-bottom: 30px; font-size: 16px; line-height: 1.8;\"\u003e\n  \u003cli\u003e1x APR 3\" (76mm) Premium Helmholtz Resonator\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"height: 1px; background: #d9d9d9; margin: 30px 0;\"\u003e\u003c\/div\u003e\n\n\u003ch3 style=\"font-size: 20px; letter-spacing: 1px; text-transform: uppercase; margin: 0 0 8px; color: #111;\"\u003eAvailability \u0026amp; Shipping\u003c\/h3\u003e\n\u003cdiv style=\"width: 52px; height: 3px; background: #0070f3; margin-bottom: 18px;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #dedede; border-radius: 10px; padding: 18px; background: #fafafa; margin-bottom: 18px;\"\u003e\n  \u003cp style=\"font-size: 15px; line-height: 1.7; margin: 0 0 10px; color: #555;\"\u003eIn stock and ships from a \u003cstrong\u003eUS warehouse\u003c\/strong\u003e. Orders are typically processed within \u003cstrong\u003e1–2 business days\u003c\/strong\u003e. Estimated US delivery: \u003cstrong\u003e3–7 business days\u003c\/strong\u003e with tracking provided once dispatched.\u003c\/p\u003e\n  \u003cp style=\"font-size: 15px; line-height: 1.7; margin: 0; color: #555;\"\u003eInternational orders: estimated delivery \u003cstrong\u003e7–14 business days\u003c\/strong\u003e depending on destination and customs. Message us before ordering if you would like a delivery estimate for your location.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"APR","offers":[{"title":"Standard","offer_id":52674032763167,"sku":"MUH0021","price":357.95,"currency_code":"USD","in_stock":true},{"title":"Indented","offer_id":52674032795935,"sku":"MUH0015","price":337.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0892\/7340\/1631\/files\/APR3_76mm_PremiumHelmholtzResonator.png?v=1783916808","url":"https:\/\/eurospeed.co\/it\/products\/apr-3-76mm-premium-helmholtz-resonator","provider":"EuroSpeed","version":"1.0","type":"link"}