{"product_id":"arm-motorsports®-17-24-audi-s4-s5-b9-304ss-3-catted-mid-pipes","title":"ARM Motorsports® (17-24) Audi S4\/S5 B9 304SS 3\" Catted Mid-Pipes","description":"\u003ch1\u003eCOMPATIBLE: (3.0L)\u003c\/h1\u003e\n\u003ch1\u003e2017 - 2024 AUDI S4 B9 \u003c\/h1\u003e\n\u003ch1\u003e\n\u003cmeta charset=\"utf-8\"\u003e2017 - 2024 AUDI S5 B9 \u003c\/h1\u003e\n\u003cdiv\u003e\n\u003ch2\u003eHIGHLIGHTS\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\n\u003cspan\u003e• 3\" Midpipe Design\u003cbr\u003e• 30% Larger Than OEM\u003cbr\u003e• Improved Exhaust Note\u003cbr\u003e• Increase Power and Torque\u003cbr\u003e• OE-Style Flex Sections\u003cbr\u003e• No Cutting or Trimming\u003cbr\u003e• 60-90 Minute Install\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch1\u003ePROFILE\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eThe ARM B9 Midpipes utilize an \u003cstrong\u003eindustry-leading\u003c\/strong\u003e \u003cstrong\u003e3\" design throughout 93% of the midpipe section\u003c\/strong\u003e, compared to the standard 2.3\" (60mm) size used by most other aftermarket options.  The ARM B9 3.0T 3\" Midpipes will unlock a more exciting and aggressive exhaust note on your 3.0T powered B9, with a \u003cstrong\u003efully reversible bolt-on solution, no cutting or modification required!\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0082\/6687\/4995\/files\/b9-midpipe-installed_1638650c-b361-4719-81ce-b7eec0cad1a8_600x600.jpg?v=1727461536\" alt=\"B9 S4 Midpipes\"\u003e\u003cbr\u003e\u003cbr\u003eBy removing the OEM front resonators which mute your Audi's 3.0T engine, the ARM B9 3.0T Midpipes utilize 3\" piping to turn up the volume and give you a deeper, richer exhaust note. When paired with the \u003ca rel=\"noopener\" title=\"Audi B9 S4 S5 Downpipe\" href=\"https:\/\/armmotorsports.com\/collections\/b9-s4-3-0t\/products\/audi-b9-s4-s5-3-0t-downpipe\" target=\"_blank\"\u003e\u003cstrong\u003eARM B9 3.0T Downpipe\u003c\/strong\u003e\u003c\/a\u003e it truly transforms the sound of your 3.0T powered B9. The ARM B9 3.0T Midpipes retain the \u003cstrong\u003euse of the OEM exhaust valves\u003c\/strong\u003e, so you can be incognito in comfort mode, or roar in dynamic!\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe video below demonstrates the difference between the OEM downpipe and midpipes and the ARM B9 3.0T downpipe and midpipes.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ccenter\u003e\u003c\/center\u003e\n\u003cdiv\u003e\n\u003ch2\u003e\n\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003eThe OEM Front Midpipes have a resonator on each midpipe that mutes the otherwise crisp exhaust note of the EA839 engine found in the B9 S4\/S5.  The ARM B9 3.0T Midpipes not only remove this OEM resonator, but also\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eexpand the piping from the OEM size of 2.3\" up to a 30% larger 3\" design\u003c\/strong\u003e, improving the exhaust harmonics for a deeper and more aggressive tone.\u003c\/h2\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0082\/6687\/4995\/files\/778762632028_1024x1024.png?v=1727973752\"\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003eCONSTRUCTION\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e The ARM B9 S4\/S5 Midpipes start at the downpipe connections with a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCNC machined 3-bolt downpipe flange\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon each side. These flanges have the most hard to reach bolt \u003cstrong\u003epre-fixed into position\u003c\/strong\u003e, as it can be very difficult to get this bolt and nut threaded due to it's location in the engine bay.  We made it easy for you by securing it to the flange so you only have to install the nut.  The ARM B9 3.0T Midpipes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewill fit either the OEM downpipe or the\u003cspan\u003e \u003c\/span\u003eARM B9 S4\/S5 Downpipe.\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0082\/6687\/4995\/files\/b9-s4-s5-midpipes-6_600x600.jpg?v=1722614247\"\u003e\u003cbr\u003e\u003cbr\u003eThe ARM B9 3.0T Midpipes immediately expand to a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3\" piping\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esize allowing for more airflow and an improved exhaust note\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecompared to the standard OEM midpipe size of 2.3\" (60mm). The precision mandrel bends of the ARM B9 3.0T Midpipes will\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efit flawlessly with the stock system.  \u003c\/strong\u003eThe ARM B9 3.0T Midpipes utilize an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOEM-quality flex section\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto allow for flexibility and durability. These flex sections relieve stress from the downpipe during aggressive driving.\u003cbr\u003e\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0082\/6687\/4995\/files\/b9-s4-s5-midpipes-1_600x600.jpg?v=1722614247\"\u003e\u003cbr\u003e\u003cbr\u003eIn addition to the flex sections, the ARM B9 3.0T Midpipes are designed with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOEM-location exhaust hangers\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhich secure the ARM B9 Midpipes even further.\u003cbr\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0082\/6687\/4995\/files\/b9-s4-s5-midpipes-8_600x600.jpg?v=1722614247\"\u003e\u003c\/h2\u003e\n\u003ch2\u003eFinally the ARM B9 3.0T Midpipes end with included reducers to connect to the OEM exhaust size of 2.3\" (60mm), allowing you to \u003cstrong\u003ereconnect the ARM B9 Midpipes to your OEM exhaust system\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewithout the need to permanently cut or modify the stock components.  Leave off the reducers and the ARM B9 3.0T Midpipes also give you the option to connect to an upgraded exhaust which uses 3\" piping. \u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eNo cutting or welding is required\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto install the ARM B9 S4\/S5 Midpipes!\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0082\/6687\/4995\/files\/b9-s4-s5-midpipes-7_600x600.jpg?v=1722614246\"\u003e\u003cbr\u003e\u003cbr\u003eLet your 3.0T-powered B9 sing with the ARM B9 3.0T Midpipe Kit! The install is simple and should take approximately\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e60-90 minutes\u003c\/strong\u003e. \u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2\u003eIN THE BOX\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003e• 2x ARM 3.0T Midpipes\u003cbr\u003e2x ARM Exhaust Reducers\u003cbr\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan\u003e• Downpipe Connection Mounting Hardware\u003cbr\u003e• Downpipe Connection Gaskets\u003c\/span\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003ch1\u003e\u003cstrong\u003eWARRANTY:\u003c\/strong\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/10secondracing.com\/pages\/arm-motorsports%C2%AE-product-warranty\"\u003e\u003cspan\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0030\/5315\/8515\/files\/ARMLOGO.png?v=1742155358\"\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"ARM Motorsports®","offers":[{"title":"Default Title","offer_id":41569580187742,"sku":"B9MID","price":374.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0030\/5315\/8515\/files\/Screenshot2025-03-17at9.27.04PM.png?v=1742261334","url":"https:\/\/10secondracing.com\/en-gb\/products\/arm-motorsports%c2%ae-17-24-audi-s4-s5-b9-304ss-3-catted-mid-pipes","provider":"10 Second Racing","version":"1.0","type":"link"}