{"product_id":"bmw-335i-valved-catback-exhaust-e90-e92-e93-n55-3-0t-2007-2013-wstn-performance","title":"BMW 335i Valved Catback Exhaust 2007-2013 (N54 E90) | WSTN Performance","description":"\u003cdiv class=\"wstn-product\"\u003e\n  \u003ch1\u003eThe N55 deserves to be heard. This is the exhaust that does it.\u003c\/h1\u003e\n  \u003cp\u003eThe BMW 335i with the N55 is one of the most tuneable straight-sixes BMW ever built smooth, responsive, and capable of serious power with the right supporting mods. The factory exhaust chokes that potential with restrictive baffling and a sound profile that does nothing for the car's character.\n\nThe WSTN Performance Valved Catback for the E90\/E92\/E93 335i changes that. Built from 304 stainless steel with precision mandrel-bent tubing and a valved muffler system, it delivers a deep, refined exhaust note under load while staying controlled on cruise. Every unit is quality checked in Perth before worldwide dispatch built to order, not off a shelf.\u003c\/p\u003e\n\n  \u003ch1\u003eWhy Upgrade?\u003c\/h1\u003e\n  \u003cp\u003e✅ Acoustic Transformation: The factory N55 exhaust kills what should be a genuinely great exhaust note. The WSTN valved system unlocks a deep, turbocharged growl that suits the car.\u003c\/p\u003e\n  \u003cp\u003e✅ Valved Control: Open for full volume under hard driving, closed for highway civility via the included remote valve controller.\u003c\/p\u003e\n  \u003cp\u003e✅ Reduced Restriction: Straight-through mandrel-bent construction removes backpressure for improved turbo spool and throttle response.\u003c\/p\u003e\n  \u003cp\u003e✅ Direct Bolt-On: No cutting, no welding, no fabrication. Mounts directly to factory flanges on E90\/E92\/E93 chassis.\u003c\/p\u003e\n  \u003cp\u003e✅ 304 Stainless Construction: Corrosion-resistant, built for Australian conditions and worldwide climates.\u003c\/p\u003e\n\n  \u003ch1\u003eKey Features \u0026amp; Specs\u003c\/h1\u003e\n  \u003cp\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 304 Stainless Steel corrosion resistant, built to last\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Precision mandrel-bent, TIG-welded joints\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eMuffler Type:\u003c\/strong\u003e Valved remote control included\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eFitment Style:\u003c\/strong\u003e Direct bolt-on to factory flanges\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Brushed 304 stainless with polished tips\u003c\/p\u003e\n\n  \u003ch1\u003eFitment \u0026amp; Compatibility\u003c\/h1\u003e\n  \u003cp\u003e✔️ BMW 335i Sedan (E90) 2007–2013 (N55 3.0T)\u003c\/p\u003e\n  \u003cp\u003e✔️ BMW 335i Coupe (E92) 2007–2013 (N55 3.0T)\u003c\/p\u003e\n  \u003cp\u003e✔️ BMW 335i Convertible (E93) 2007–2013 (N55 3.0T)\u003c\/p\u003e\n  \u003cp\u003eDesigned for N55-equipped E-series 335i. Verify engine code before ordering early 335i used the N54 (twin-turbo) which shares the same chassis. Contact us if unsure.\u003c\/p\u003e\n\n  \u003ch3\u003eTechnical Note\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eValve Control:\u003c\/strong\u003e Remote valve controller included. Compatible with aftermarket controller upgrades.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eSound Level:\u003c\/strong\u003e Track-ready volume when open. Highway-appropriate when closed.\u003c\/p\u003e\n\n  \u003ch1\u003eWhat's In the Box\u003c\/h1\u003e\n  \u003cp\u003e1 x WSTN Performance Valved Catback Exhaust System\u003c\/p\u003e\n  \u003cp\u003e1 x Remote Valve Control Kit\u003c\/p\u003e\n\n  \u003ch1\u003eInstallation\u003c\/h1\u003e\n  \u003cp\u003e\u003cstrong\u003eDifficulty:\u003c\/strong\u003e 3\/5 Requires workshop lift and exhaust experience\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eTime Estimate:\u003c\/strong\u003e 2–3 Hours\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eMounting Type:\u003c\/strong\u003e Direct bolt-on to factory exhaust flanges\u003c\/p\u003e\n\n\n  \u003ch1\u003eWarranty \/ Shipping\u003c\/h1\u003e\n\n  \u003ch3\u003eDISCLAIMER\u003c\/h3\u003e\n  \u003cp\u003eWSTN Performance components are designed for track and competition use. To protect your build and ensure a perfect finish, we recommend professional installation by a certified specialist\/workshop. It is the buyer's responsibility to ensure modifications comply with local regulations.\u003c\/p\u003e\n\n  \u003ch3\u003eWARRANTY\u003c\/h3\u003e\n  \u003cp\u003eWe stand behind every product we sell. All WSTN Performance products carry a 1 year WSTN Performance warranty as standard. This covers any manufacturing defects, giving you total peace of mind that your upgrade is built to last. \u003ca href=\"\/en-ca\/policies\/refund-policy\"\u003eView our full Warranty policy page here.\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eSHIPPING\u003c\/h3\u003e\n  \u003cp\u003eWe offer tracked worldwide shipping on our entire catalogue. Products marked as “Built to Order” are handmade in 3–5 weeks (check the product page as lead times may vary), personally dispatched from our Perth WA facility. \u003ca href=\"\/en-ca\/policies\/shipping-policy\"\u003eView our full Shipping policy page here.\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eRETURNS\u003c\/h3\u003e\n  \u003cp\u003eWe offer returns on all products if items are damaged or there is something wrong. If we ever make a mistake, we'll cover the return shipping to make it right. \u003ca href=\"\/en-ca\/policies\/refund-policy\"\u003eView our full Return policy page here.\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eSUPPORT\u003c\/h3\u003e\n  \u003cp\u003eNeed a hand with fitment, shipping, or a return? Our Perth-based team is here to help you get your build perfect.\u003cbr\u003e\n  Email: \u003ca href=\"mailto:contact@wstnperformance.com\"\u003econtact@wstnperformance.com\u003c\/a\u003e\u003c\/p\u003e\n\n  \u003ch1\u003eSound Clip\u003c\/h1\u003e\n\n\u003c\/div\u003e","brand":"WSTN Performance","offers":[{"title":"Default Title","offer_id":50439843938550,"sku":"WSTN-BMW-E90-E92-E93-EXH","price":3743.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/2955\/2886\/files\/WSTN-bmw-335i-n54-n55-002.jpg?v=1780025981","url":"https:\/\/wstnperformance.com.au\/en-ca\/products\/bmw-335i-valved-catback-exhaust-e90-e92-e93-n55-3-0t-2007-2013-wstn-performance","provider":"wstnperformance","version":"1.0","type":"link"}