.product-accordion { font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; max-width: 100%; border-top: 1px solid #e5e5e5; margin-top: 20px; text-align: left; } .accordion-item { border-bottom: 1px solid #e5e5e5; } .accordion-header { background: #fff; color: #000; cursor: pointer; padding: 18px 0; width: 100%; border: none; text-align: left; font-size: 13px; font-weight: bold; letter-spacing: 1.5px; text-transform: uppercase; display: flex; justify-content: space-between; align-items: center; outline: none; } .accordion-header:after { content: '+'; font-size: 18px; color: #000; } .accordion-item.active .accordion-header:after { content: '-'; } .accordion-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease-out; } .accordion-content-inner { padding: 0 0 25px 0; font-size: 14px; line-height: 1.6; color: #333; text-align: left; } .accordion-content-inner ul { margin: 10px 0; padding-left: 20px; } Description B58 4.5″ Catless Downpipe Heat Shield BMW B58 (2016–2023) Protect vital engine bay components with the B58 4.5″ Catless Downpipe Heat Shield, designed specifically for high-performance B58 setups. Engineered to manage the increased heat generated by large-diameter catless downpipes, this heat shield helps reduce radiant heat and maintain stable operating temperatures under demanding conditions. The 4.5-inch coverage area is optimized for maximum heat reflection, shielding surrounding components such as wiring, sensors, and intake elements from excessive thermal exposure. This results in improved reliability and consistency, especially during spirited driving or high-load use. Manufactured from high-temperature resistant materials and precision-formed for a clean, OEM-style integration, this heat shield is a functional and essential upgrade for modified B58 platforms. Key Features Designed for 4.5″ B58 catless downpipes Reduces radiant heat in the engine bay Improves thermal management and component protection High-temperature resistant construction Precision-formed for clean integration Ideal for high-performance and tuned setups Kavoni Design Quality At Kavoni Design, we select performance components that prioritize reliability, function, and quality. This B58 downpipe heat shield meets our standards for material durability and effective heat management, delivering a practical upgrade with a factory-inspired finish for high-output B58 builds. Shipping & Returns This product is made to order. Please allow 12–14 business days for production. Orders are shipped worldwide after production is completed. Worldwide shipping: 6–8 business days Returns are accepted within 14 days of delivery for unused items in original condition. Return shipping costs are the responsibility of the customer. Fitment Not sure if this heat shield is compatible with your setup? Contact our sales team and we will be happy to help you confirm the correct application. Warranty Every product from Kavoni Design comes with a 12-month warranty. This warranty covers manufacturing defects under normal use. Damage caused by improper installation, extreme heat exposure beyond intended use, or modifications is not covered. Disclaimer This product is an aftermarket performance component and not original manufacturer equipment. Professional installation is strongly recommended. Kavoni Design is not responsible for damage incurred during or after installation. function toggleAccordion(element) { const item = element.parentElement; const content = element.nextElementSibling; const allItems = document.querySelectorAll('.accordion-item'); allItems.forEach(i => { if (i !== item) { i.classList.remove('active'); i.querySelector('.accordion-content').style.maxHeight = null; } }); item.classList.toggle('active'); if (item.classList.contains('active')) { content.style.maxHeight = content.scrollHeight + "px"; } else { content.style.maxHeight = null; } }
