{"product_id":"equal-length-catback-exhaust-s55-f80-f82","title":"Equal Length Catback Exhaust S55 f80\/f82","description":"\u003cstyle\u003e\n  .product-accordion {\n    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;\n    max-width: 100%;\n    border-top: 1px solid #e5e5e5;\n    margin-top: 20px;\n    text-align: left;\n  }\n\n  .accordion-item {\n    border-bottom: 1px solid #e5e5e5;\n  }\n\n  .accordion-header {\n    background: #fff;\n    color: #000;\n    cursor: pointer;\n    padding: 18px 0;\n    width: 100%;\n    border: none;\n    text-align: left;\n    font-size: 13px;\n    font-weight: bold;\n    letter-spacing: 1.5px;\n    text-transform: uppercase;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n    outline: none;\n  }\n\n  .accordion-header:after {\n    content: '+';\n    font-size: 18px;\n  }\n\n  .accordion-item.active .accordion-header:after {\n    content: '-';\n  }\n\n  .accordion-content {\n    max-height: 0;\n    overflow: hidden;\n    transition: max-height 0.3s ease;\n  }\n\n  .accordion-content-inner {\n    padding: 0 0 25px 0;\n    font-size: 14px;\n    line-height: 1.6;\n    color: #333;\n  }\n\n  .accordion-content-inner ul {\n    margin: 10px 0;\n    padding-left: 20px;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"product-accordion\"\u003e\n\n  \u003c!-- DESCRIPTION --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003eDescription\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        \u003cp\u003e\n          Unlock the true sound character of your BMW with the \u003cstrong\u003eEqual Length Catback Exhaust System for the S55 engine\u003c\/strong\u003e, engineered specifically for the F80 M3 and F82 M4. This system transforms the factory exhaust note by balancing exhaust pulses from both banks, delivering a smoother, more refined, and exotic tone.\n        \u003c\/p\u003e\n\n        \u003cp\u003e\n          The \u003cstrong\u003eequal length design\u003c\/strong\u003e significantly reduces the rasp commonly associated with the S55 platform, producing a cleaner and higher-pitched exhaust note under acceleration. The result is a more motorsport-inspired sound profile, while maintaining a controlled and comfortable tone during daily driving.\n        \u003c\/p\u003e\n\n        \u003cp\u003e\n          As a full \u003cstrong\u003ecatback system\u003c\/strong\u003e, this setup replaces the exhaust from the midpipe back, optimising flow, sound clarity, and overall driving engagement. Manufactured from high-quality materials for durability and heat resistance, it integrates seamlessly with factory mounting points for a precise OEM-style fit.\n        \u003c\/p\u003e\n\n        \u003cul\u003e\n          \u003cli\u003eEqual length catback exhaust design\u003c\/li\u003e\n          \u003cli\u003eReduces rasp and harsh frequencies\u003c\/li\u003e\n          \u003cli\u003eSmoother, higher-pitched and refined tone\u003c\/li\u003e\n          \u003cli\u003eImproved exhaust flow and sound dynamics\u003c\/li\u003e\n          \u003cli\u003eHigh-quality, heat-resistant construction\u003c\/li\u003e\n          \u003cli\u003eOEM-style fit and seamless integration\u003c\/li\u003e\n        \u003c\/ul\u003e\n\n        \u003cp\u003e\n          \u003cstrong\u003eKavoni Design Quality\u003c\/strong\u003e\u003cbr\u003e\n          At Kavoni Design, we select performance upgrades that combine engineering precision with driving emotion. This equal length catback exhaust delivers a refined yet aggressive sound transformation, perfectly suited to the BMW F80 M3 and F82 M4 platform.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- SHIPPING --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\" type=\"button\" onclick=\"toggleAccordion(this)\"\u003eShipping \u0026amp; Returns\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        This product is made to order. Please allow \u003cstrong\u003e12-14 business days\u003c\/strong\u003e for production.\n        \u003cbr\u003e\u003cbr\u003e\n        Orders are shipped worldwide after production is completed.\n        \u003cul\u003e\n          \u003cli\u003e\u003cstrong\u003eWorldwide shipping: 6–8 business days\u003c\/strong\u003e\u003c\/li\u003e\n        \u003c\/ul\u003e\n        Returns are accepted within \u003cstrong\u003e14 days of delivery\u003c\/strong\u003e for unused items in original condition. Return shipping costs are the responsibility of the customer.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- FITMENT --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003eFitment\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        BMW F80 M3 (S55 Engine)\u003cbr\u003e\n        BMW F82 M4 (S55 Engine)\n        \u003cbr\u003e\u003cbr\u003e\n        Designed as a direct-fit catback system using factory mounting points.\n        \u003cbr\u003e\u003cbr\u003e\n        Professional installation is recommended. If you are unsure about compatibility with your specific exhaust setup, please contact our team before ordering.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- WARRANTY --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003eWarranty\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        All performance exhaust systems from \u003cstrong\u003eKavoni Design\u003c\/strong\u003e include a \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering manufacturing defects under normal use.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- DISCLAIMER --\u003e\n  \u003cdiv class=\"accordion-item\"\u003e\n    \u003cbutton class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003eDisclaimer\u003c\/button\u003e\n    \u003cdiv class=\"accordion-content\"\u003e\n      \u003cdiv class=\"accordion-content-inner\"\u003e\n        This is an aftermarket performance product. Exhaust sound levels may vary depending on vehicle configuration and local regulations.\n        Professional installation is strongly recommended.\n        Kavoni Design is not responsible for damage caused by incorrect installation or improper use.\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\n  function toggleAccordion(element) {\n    const item = element.parentElement;\n    const content = element.nextElementSibling;\n\n    document.querySelectorAll('.accordion-item').forEach(i =\u003e {\n      if (i !== item) {\n        i.classList.remove('active');\n        i.querySelector('.accordion-content').style.maxHeight = null;\n      }\n    });\n\n    item.classList.toggle('active');\n    content.style.maxHeight = item.classList.contains('active')\n      ? content.scrollHeight + \"px\"\n      : null;\n  }\n\u003c\/script\u003e","brand":"kavonidesign","offers":[{"title":"Non - Resonated \/ Carbon M","offer_id":56929795178879,"sku":null,"price":1999.95,"currency_code":"EUR","in_stock":true},{"title":"Non - Resonated \/ Carbon Kavoni","offer_id":57382764446079,"sku":null,"price":1999.95,"currency_code":"EUR","in_stock":true},{"title":"Non - Resonated \/ Stainless Steel Kavoni","offer_id":57382764478847,"sku":null,"price":1999.95,"currency_code":"EUR","in_stock":true},{"title":"Non - Resonated \/ Burned Kavoni","offer_id":57382764511615,"sku":null,"price":1999.95,"currency_code":"EUR","in_stock":true},{"title":"Non - Resonated \/ Stainless Steel Black Kavoni","offer_id":57382764544383,"sku":null,"price":1999.95,"currency_code":"EUR","in_stock":true},{"title":"Resonated \/ Carbon M","offer_id":56929795146111,"sku":null,"price":2049.95,"currency_code":"EUR","in_stock":true},{"title":"Resonated \/ Carbon Kavoni","offer_id":57382764577151,"sku":null,"price":2049.95,"currency_code":"EUR","in_stock":true},{"title":"Resonated \/ Stainless Steel Kavoni","offer_id":57382764609919,"sku":null,"price":2049.95,"currency_code":"EUR","in_stock":true},{"title":"Resonated \/ Burned Kavoni","offer_id":57382764642687,"sku":null,"price":2049.95,"currency_code":"EUR","in_stock":true},{"title":"Resonated \/ Stainless Steel Black Kavoni","offer_id":57382764675455,"sku":null,"price":2049.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/9013\/5679\/files\/Hc014dc8ac9e6429787d2e2ea525658dc8.jpg?v=1773241701","url":"https:\/\/kavonidesign.com\/products\/equal-length-catback-exhaust-s55-f80-f82","provider":"kavonidesign","version":"1.0","type":"link"}