{"product_id":"armytrix-bmw-f20-f21-m135i-2012-2015-valvetronic-exhaust-system","title":"Armytrix BMW F20\/F21 M135i (2012-2015) valvetronic exhaust system","description":"\u003cp\u003eExperience the raw performance and unmistakable sound of your BMW F20\/F21 M135i like never before with the ARMYTRIX Valvetronic Exhaust System. Engineered specifically for the 2012–2015 RWD models equipped with the N55B30 turbocharged inline-six, this system delivers aggressive acoustics, improved flow, and wireless valve control for maximum versatility.\u003c\/p\u003e\u003cp\u003eWhether you're carving corners or cruising through town, ARMYTRIX transforms your M135i into a more dynamic, visceral driving machine—without sacrificing day-to-day comfort or reliability.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e BMW M135i\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eChassis:\u003c\/strong\u003e F20 \/ F21\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eYears:\u003c\/strong\u003e 2012–2015\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e N55B30 3.0L Turbocharged Inline-6\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eDrive Type:\u003c\/strong\u003e Rear-Wheel Drive (RWD Only)\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eBody Styles:\u003c\/strong\u003e 5-Door Hatchback \/ 3-Door Hatchback\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eDrive Orientation:\u003c\/strong\u003e Left-Hand Drive \u0026amp; Right-Hand Drive Compatible\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eVIN Verification:\u003c\/strong\u003e Strongly recommended to confirm downpipe version and precise fitment\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Tailpipe adjustment may be required depending on rear bumper style; quad-tip configuration requires compatible aftermarket diffuser (contact us before ordering)\u003c\/p\u003e\t\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eWireless Valvetronic Control:\u003c\/strong\u003e App-based operation via OBDII port—switch between stealth and sport with a tap\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eMain Pipe Diameter:\u003c\/strong\u003e 3.0” – optimised for power and turbo spool\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eExhaust Tips:\u003c\/strong\u003e Dual 2.5” – available in polished or black finishes\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eDirect Bolt-On Installation:\u003c\/strong\u003e No cutting or welding required; all hardware included\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eSmart CEL Prevention:\u003c\/strong\u003e Exclusive Armytrix fault code clearing module greatly reduces the chance of Check Engine Light (CEL) when paired with high-flow or decat setups\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e Crafted from high-grade stainless steel for superior durability, heat resistance, and long-term performance\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003ePlug-and-Play Design:\u003c\/strong\u003e OBDII control module slashes install time by 30% compared to traditional wired systems\u003c\/p\u003e\t\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eValvetronic Sound Modes:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTake command of your M135i’s exhaust character with adjustable valve control via the Armytrix app or included wireless remote:\u003c\/p\u003e\u003cul\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eValves Closed:\u003c\/strong\u003e Refined and quiet for daily driving or early morning starts\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eValves Open:\u003c\/strong\u003e Loud, aggressive tone for spirited driving and full performance experience\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003e\u003cstrong\u003eAdaptive Control:\u003c\/strong\u003e System responds to RPM and throttle input for dynamic sound modulation\u003c\/p\u003e\t\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCEL Prevention \u0026amp; System Integration:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIncluded with the full system is a dedicated Armytrix OBDII module that:\u003c\/p\u003e\u003cul\u003e\t\u003cli\u003e\t\u003cp\u003eClears fault codes related to catalytic converter or OPF deletion\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003eMinimises the likelihood of a CEL, even with high-flow or catless downpipes\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003eSeamlessly integrates with vehicle electronics for a hassle-free experience\u003c\/p\u003e\t\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy Choose ARMYTRIX for Your BMW M135i?\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\t\u003cli\u003e\t\u003cp\u003eFully wireless valve control via smartphone and OBDII connection\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003eProven performance gains with signature ARMYTRIX sound\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003eEnhanced aesthetics with dual 2.5” tips and optional quad-tip configuration\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003eEngineered specifically for RWD F20\/F21 M135i models\u003c\/p\u003e\t\u003c\/li\u003e\t\u003cli\u003e\t\u003cp\u003eCEL-reducing technology for smoother operation with modified exhaust setups\u003c\/p\u003e\t\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGive Your M135i the Sound, Style, and Performance It Deserves\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003ePerfectly tailored for the N55-powered F20\/F21 chassis, the ARMYTRIX Valvetronic Exhaust System elevates your M135i to new heights. From the aggressive sound profile to the intelligent valve control and premium craftsmanship, this system redefines what your BMW hatchback is capable of.\u003c\/p\u003e","brand":"Armytrix","offers":[{"title":"Dual Carbon Tips","offer_id":53603842687323,"sku":"BMF23-DC11","price":3575.0,"currency_code":"GBP","in_stock":true},{"title":"Quad Chrome Tips","offer_id":53603842720091,"sku":"BMF23-QS42C","price":3532.5,"currency_code":"GBP","in_stock":true},{"title":"Quad Matte Black","offer_id":53603842752859,"sku":"BMF23-DS11C","price":3813.0,"currency_code":"GBP","in_stock":true},{"title":"Dual Chrome Tips","offer_id":53603842785627,"sku":"BMF23-DS11C","price":3294.5,"currency_code":"GBP","in_stock":true},{"title":"Dual Matte Black Tips","offer_id":53603842818395,"sku":"BMF23-DS11M","price":3430.5,"currency_code":"GBP","in_stock":true},{"title":"Dual Gold Tips","offer_id":53603842851163,"sku":"BMF23-DS11G","price":3430.5,"currency_code":"GBP","in_stock":true},{"title":"Dual Blue Tips","offer_id":53603842883931,"sku":"BMF23-DS11B","price":3413.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1024\/0904\/4315\/files\/25ad1bdf-68812d_0a841977c5f647fd807cf2cf29c9ef5e_mv2.jpg?v=1784198445","url":"https:\/\/czkrrg-yc.myshopify.com\/products\/armytrix-bmw-f20-f21-m135i-2012-2015-valvetronic-exhaust-system","provider":"Avon Tuning Store","version":"1.0","type":"link"}