{"product_id":"mad-bmw-g90-m5-axle-back-f5tenn","title":"MAD BMW G90 M5 Axle-Back","description":"\u003cp data-start=\"766\" data-end=\"1001\"\u003eUpgrade the sound, performance, and control of your BMW G90 M5 with the MAD Axle-Back Exhaust System, engineered to deliver a more aggressive tone, improved flow, and full exhaust valve control that the factory system does not provide.\u003c\/p\u003e\n\u003cp data-start=\"1003\" data-end=\"1236\"\u003eDesigned as the perfect finishing touch for the G90 M5, especially when paired with the MAD 5-inch single midpipe, this axle-back system transforms the driving experience with a deeper, more refined, and more aggressive exhaust note.\u003c\/p\u003e\n\u003cp data-start=\"1238\" data-end=\"1545\"\u003eUnlike the North American G90\/G99 factory setup that lacks valve functionality, the MAD axle-back introduces a fully valved system with included valve motors and a dedicated controller, allowing you to switch instantly between a quiet, refined driving mode and an aggressive, high-performance sound profile.\u003c\/p\u003e\n\u003cp data-start=\"1547\" data-end=\"1855\"\u003eBuilt from premium 304 stainless steel, this system features larger-diameter piping for improved exhaust flow and a reduced-mass muffler design to help lower overall weight while enhancing throttle response and sound clarity. The result is a sharper, more responsive exhaust note with a cleaner overall tone.\u003c\/p\u003e\n\u003cp data-start=\"1857\" data-end=\"1978\"\u003eAvailable with brushed, black, or carbon tips, this system allows you to customize the visual finish to match your build.\u003c\/p\u003e\n\u003ch3 data-section-id=\"19zqy0x\" data-start=\"1980\" data-end=\"1992\"\u003eFeatures\u003c\/h3\u003e\n\u003cul data-start=\"1993\" data-end=\"2542\"\u003e\n\u003cli data-section-id=\"t99eyd\" data-start=\"1993\" data-end=\"2045\"\u003eLarger-diameter piping for improved exhaust flow\u003c\/li\u003e\n\u003cli data-section-id=\"13smksl\" data-start=\"2046\" data-end=\"2106\"\u003eFully valved exhaust system for adjustable sound control\u003c\/li\u003e\n\u003cli data-section-id=\"17ltuij\" data-start=\"2107\" data-end=\"2136\"\u003eIncludes two valve motors\u003c\/li\u003e\n\u003cli data-section-id=\"1luapn3\" data-start=\"2137\" data-end=\"2197\"\u003eIncludes valve controller for on-demand sound adjustment\u003c\/li\u003e\n\u003cli data-section-id=\"1eeiva6\" data-start=\"2198\" data-end=\"2238\"\u003eConstructed from 304 stainless steel\u003c\/li\u003e\n\u003cli data-section-id=\"9tqzdj\" data-start=\"2239\" data-end=\"2296\"\u003eLightweight muffler design for reduced overall weight\u003c\/li\u003e\n\u003cli data-section-id=\"1nyo1rb\" data-start=\"2297\" data-end=\"2350\"\u003eImproved throttle response and exhaust efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"1bfwtla\" data-start=\"2351\" data-end=\"2390\"\u003eAggressive and refined exhaust tone\u003c\/li\u003e\n\u003cli data-section-id=\"l5odiv\" data-start=\"2391\" data-end=\"2453\"\u003eCompatible with stock midpipe or MAD 5-inch single midpipe\u003c\/li\u003e\n\u003cli data-section-id=\"d7etp9\" data-start=\"2454\" data-end=\"2511\"\u003eAvailable with brushed, black, or carbon exhaust tips\u003c\/li\u003e\n\u003cli data-section-id=\"1rbrnqv\" data-start=\"2512\" data-end=\"2542\"\u003eLifetime warranty included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1x5ej4z\" data-start=\"2544\" data-end=\"2563\"\u003eImportant Notes\u003c\/h3\u003e\n\u003cul data-start=\"2564\" data-end=\"2728\"\u003e\n\u003cli data-section-id=\"1j4a9el\" data-start=\"2564\" data-end=\"2626\"\u003eCutting is required when connecting to the factory midpipe\u003c\/li\u003e\n\u003cli data-section-id=\"6s19fy\" data-start=\"2627\" data-end=\"2728\"\u003eFor best performance and sound results, pairing with the MAD single midpipe is highly recommended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1oqyx9r\" data-start=\"2730\" data-end=\"2748\"\u003eRecommendation\u003c\/h3\u003e\n\u003cp data-start=\"2749\" data-end=\"2874\"\u003eFor maximum sound, flow, and performance, this axle-back system is best paired with the MAD BMW G90 M5 5-inch single midpipe.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dixaz0\" data-start=\"2876\" data-end=\"2886\"\u003eFitment\u003c\/h2\u003e\n\u003cul data-start=\"2887\" data-end=\"2914\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"1ab9m1y\" data-start=\"2887\" data-end=\"2901\"\u003eBMW G90 M5\u003c\/li\u003e\n\u003cli data-section-id=\"1jvc6q7\" data-start=\"2902\" data-end=\"2914\" data-is-last-node=\"\"\u003eBMW G99 M5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:1870d716-6c8d-477b-bb35-b5b3d0ee2d3a-2\" data-testid=\"conversation-turn-6\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"1f71817d-dd71-41c7-a800-a1d7fcde4e20\" data-message-model-slug=\"gpt-5-3-mini\" data-turn-start-message=\"true\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"122\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong\u003eThis is the exhaust system that finally gives the G90 M5 the sound, flow, and control it should have had from the factory.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e \u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"pointer-events-none -mt-px h-px translate-y-[calc(var(--scroll-root-safe-area-inset-bottom)-14*var(--spacing))]\" aria-hidden=\"true\"\u003e \u003c\/div\u003e","brand":"Mastery of Art and Design","offers":[{"title":"Brushed","offer_id":52625426252056,"sku":"MAD-138 + MAD-139-BR","price":2759.84,"currency_code":"USD","in_stock":true},{"title":"Black","offer_id":52625426284824,"sku":"MAD-138 + MAD-139-BL","price":2862.13,"currency_code":"USD","in_stock":true},{"title":"Carbon","offer_id":52625426317592,"sku":"MAD-138 + MAD-139-CA","price":2862.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/4514\/4856\/files\/tiuo6khom0m1_2da587ef-552e-411a-bfc1-4ed940eb0d3f.jpg?v=1788767521","url":"https:\/\/driveforges.com\/products\/mad-bmw-g90-m5-axle-back-f5tenn","provider":"Drive Forge","version":"1.0","type":"link"}