{"product_id":"bmw-e9x-335i-n54-n55-catback-exhaust","title":"BMW E9x 335i N54\/N55 catback exhaust","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    color: #000;\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-out;\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    text-align: left;\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\n        \u003cstrong\u003eCatback Exhaust System\u003c\/strong\u003e\u003cbr\u003e\n        BMW E9x 335i – N54 \/ N55\n        \u003cbr\u003e\u003cbr\u003e\n\n        Enhance the sound and driving character of your BMW with the Catback Exhaust System for the E9x 335i N54 and N55. Designed to deliver a deeper, more aggressive exhaust tone, this system brings out the true character of the turbocharged inline-six while maintaining refinement for daily driving.\n        \u003cbr\u003e\u003cbr\u003e\n\n        The performance-oriented design improves exhaust flow, resulting in sharper throttle response and a more engaging driving experience. The sound profile is sporty and powerful under acceleration, yet controlled and comfortable during cruising.\n        \u003cbr\u003e\u003cbr\u003e\n\n        \u003cstrong\u003eImportant compatibility note:\u003c\/strong\u003e  \n        For vehicles equipped with the \u003cstrong\u003eN55 engine\u003c\/strong\u003e, this catback exhaust requires a \u003cstrong\u003edownpipe that splits into two pipes where the midpipe connects\u003c\/strong\u003e. Vehicles with a standard single-outlet N55 downpipe will require a compatible split downpipe for proper installation.\n        \u003cbr\u003e\u003cbr\u003e\n\n        Constructed from high-grade stainless steel and finished with precision TIG welds, this catback exhaust system offers durability, premium aesthetics, and long-term reliability. A well-balanced upgrade that enhances both performance and presence.\n        \u003cbr\u003e\u003cbr\u003e\n\n        \u003cstrong\u003eKey Features\u003c\/strong\u003e\n        \u003cul\u003e\n          \u003cli\u003eCatback exhaust system\u003c\/li\u003e\n          \u003cli\u003eDeeper, more aggressive exhaust tone\u003c\/li\u003e\n          \u003cli\u003eImproved exhaust flow and throttle response\u003c\/li\u003e\n          \u003cli\u003eHigh-grade stainless steel construction\u003c\/li\u003e\n          \u003cli\u003ePrecision TIG welding for strength and clean finish\u003c\/li\u003e\n          \u003cli\u003ePerformance-focused design with OEM-level quality\u003c\/li\u003e\n        \u003c\/ul\u003e\n\n        \u003cstrong\u003eKavoni Design Quality\u003c\/strong\u003e\u003cbr\u003e\n        At Kavoni Design, we select exhaust upgrades that deliver sound, performance, and craftsmanship without compromise. This catback exhaust system for the BMW E9x 335i N54 and N55 meets our standards for quality, precision, and driving enjoyment, offering a refined performance upgrade with a factory-inspired finish.\n\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 3 Series E90 \/ E91 \/ E92 \/ E93 335i\n        \u003cbr\u003e\u003cbr\u003e\n        Engine compatibility:\n        \u003cul\u003e\n          \u003cli\u003eN54\u003c\/li\u003e\n          \u003cli\u003eN55 (requires dual-outlet split downpipe)\u003c\/li\u003e\n        \u003c\/ul\u003e\n        Professional installation is recommended. If you are unsure about compatibility, 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        This product includes a \u003cstrong\u003e12-month warranty\u003c\/strong\u003e covering manufacturing defects under normal use. Damage caused by improper installation, accidents, or misuse is not covered.\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 component. Professional installation is strongly recommended to ensure proper fitment and function. Kavoni Design is not responsible for damage caused during 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\nfunction 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":"Carbon M","offer_id":57382780731775,"sku":null,"price":1949.95,"currency_code":"EUR","in_stock":true},{"title":"Carbon Kavoni","offer_id":57382780764543,"sku":null,"price":1949.95,"currency_code":"EUR","in_stock":true},{"title":"Stainless Steel Kavoni","offer_id":57382780797311,"sku":null,"price":1949.95,"currency_code":"EUR","in_stock":true},{"title":"Burned Kavoni","offer_id":57382780830079,"sku":null,"price":1949.95,"currency_code":"EUR","in_stock":true},{"title":"Stainless Steel Black Kavoni","offer_id":57382780862847,"sku":null,"price":1949.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/9013\/5679\/files\/wmremove-transformed_2.jpg?v=1776373583","url":"https:\/\/kavonidesign.com\/products\/bmw-e9x-335i-n54-n55-catback-exhaust","provider":"kavonidesign","version":"1.0","type":"link"}