{"product_id":"2-5inch-universal-single-inlet-single-outlet-electronic-valved-exhaust-muffler-baffled-internal-structure-twin-pipe-muffler-with-control-box","title":"2.5inch Universal Single Inlet Single Outlet Electronic Valved Exhaust Muffler Baffled Internal Structure Twin Pipe Muffler with Control Box","description":"\u003ch1\u003eDESCRIPTION\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal single inlet single outlet electronic valved muffler for custom exhaust fabrication.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Two material options: 201 or premium 304 stainless steel. Available inlet diameters: 2 inch, 2.5 inch, 2.75 inch, 3 inch, 3.5 inch. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eComplete package includes electronic valve actuator, control box, wireless remote and wiring harness. It can switch sound modes with one click, quiet tone for daily commute and deep sporty sound for performance driving. Optimized internal chamber structure balances exhaust flow and backpressure, reducing unwanted cabin resonance.\u003c\/p\u003e\n\u003cp\u003eThis weld-on valve muffler requires professional TIG welding installation. The electronic actuator maintains stable operation under high-temperature exhaust conditions. Multiple pipe diameter options fit vehicles of different displacements, while two stainless steel grades meet different budget and durability requirements, widely used for sedan, coupe and performance car custom exhaust builds.\u003c\/p\u003e\n\u003ch1\u003eVEHICLE FITMENT\u003c\/h1\u003e\n\u003cp\u003eUniversal weld-on fitment for most passenger cars and performance vehicles for custom exhaust modification. \u003c\/p\u003e\n\u003ch1\u003eKEY FEATURES\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Sound Tone Switch:\u003c\/strong\u003e Easily alternate between an aggressive racing sound and a quiet OEM tone with a single click of the wireless remote.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Perforated Baffle:\u003c\/strong\u003e Features a high-efficiency perforated internal structure that optimizes backpressure and eliminates annoying drone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Stainless Steel Construction:\u003c\/strong\u003e Built with heavy-duty 201\/304 material and premium TIG welding for maximum durability and rust resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Plug-and-Play Kit: \u003c\/strong\u003eComes fully equipped with a high-torque electric valve motor, receiver control box, and full wiring harness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Weld-On Fitment:\u003c\/strong\u003e Designed as a universal modification piece, suitable for a wide range of car makes and models with professional installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eTECH SPECIFICATIONS\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Name:\u003c\/strong\u003e Universal Stainless Steel Electric Valved Exhaust Muffler\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal Structure:\u003c\/strong\u003e Perforated Internal Baffle Design \/ Multi-Chamber Baffled Core\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Type:\u003c\/strong\u003e Electric Motor Driven Valve (Electronic Valve)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: \u003c\/strong\u003eHigh-Grade 201\/304 Stainless Steel \u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Method: \u003c\/strong\u003eWireless Remote Control \u0026amp; Complete Wire Harness Kit\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSound Performance: \u003c\/strong\u003eDual Sound Modes (Aggressive Racing Sound \/ Quiet OEM Sound)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Voltage:\u003c\/strong\u003e DC 12V Universal for Automotive\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment Type:\u003c\/strong\u003e Universal Fit for Most Vehicles (Professional Welding Required)\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable Sizes: \u003c\/strong\u003e2.0\" \/ 2.25\" \/ 2.5\" \/ 3.0\"\/3.5\"Inlet \u0026amp; Outlet\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKey Features:\u003c\/strong\u003e Anti-corrosion, Premium TIG Welding, High Temperature Resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eWHAT'S IN THE BOX\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003e2 x Electric Valve Muffler\u003c\/li\u003e\n\u003cli\u003e1x Electronic Control Module \u003c\/li\u003e\n\u003cli\u003e1 x Remote Key Fob\u003c\/li\u003e\n\u003cli\u003eFull Set Wiring Harness \u0026amp; Installation Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eInstallation Guide \u0026amp; Precautions\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e1. Mechanical \u0026amp; Welding Safety \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Installation Required: \u003c\/strong\u003eThis is a universal weld-on performance parts. Professional welding (TIG welding highly recommended) and custom piping installation by an experienced exhaust shop are required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Check:\u003c\/strong\u003e Before permanent welding, mock up the muffler under the vehicle to ensure at least 1.5 - 2 inches of clearance from the car body, heat shields, fuel lines, and suspension components to prevent heat damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Direction:\u003c\/strong\u003e Ensure the muffler is oriented in the correct exhaust gas flow direction. Install with the single inlet facing the engine side and the twin outlet facing the rear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2. Electrical \u0026amp; Wiring Connections \u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Compatibility: \u003c\/strong\u003eThis electronic system is strictly designed for DC 12V automotive electrical systems only. Do not connect to 24V commercial trucks.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat \u0026amp; Vibration Protection: \u003c\/strong\u003eRoute the actuator wiring harness safely away from high-heat zones (like the exhaust pipes themselves) and moving suspension parts. Secure cables with heat-resistant zip ties.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproof Measures:\u003c\/strong\u003e Although the motor and connectors have basic weather resistance, ensure the control module box is installed in a dry location inside the vehicle (e.g., cabin or trunk) to prevent water ingress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e3. System Testing \u0026amp; Operation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Check Before Welding:\u003c\/strong\u003e Connect the control box, wiring, and cigarette lighter\/power source before final welding to test if the remote control fully opens and closes the valves smoothly.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExhaust Gas Seal: \u003c\/strong\u003eEnsure all welded joints are 100% sealed. Any exhaust leaks near the valve mechanism can cause abnormal rattling noises and reduce backpressure efficiency.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking-In Period:\u003c\/strong\u003e It is normal to smell a slight burning odor during the first few miles of driving. This is the protective coating curing inside the new perforated stainless steel baffle core.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eTrouble-Shooting Guide\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003e1.Valve Not Responding:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCheck if the blue LED indicator on the remote control lights up (replace battery if dim).\u003c\/li\u003e\n\u003cli\u003eVerify the cigarette lighter power plug or 12V power source is firmly connected and the fuse is intact.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e2.Abnormal Rattle or Noise:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnsure there is sufficient clearance between the valve actuator motor and the car chassis.\u003c\/li\u003e\n\u003cli\u003eCheck for any pebble or welding slag stuck inside the perforated baffle chamber.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e3.Intermittent Signal:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDo not shield the receiver control box behind heavy metal sheets. Extend the small antenna wire for better wireless reception.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eMeasurement Confirmation\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eMeasure Before You Buy: \u003c\/strong\u003ePlease carefully measure the available space (Length, Width, Height, and Pipe Inlet Diameter) under your specific vehicle before placing an order.\u003cbr\u003e\u003cstrong\u003eCustom Adjustments: \u003c\/strong\u003eSince this is a universal high-performance baffled muffler, modification shops may need to add extra extension pipes or adjust hanger brackets to fit your unique exhaust layout.\u003c\/p\u003e","brand":"Wanmax Racing","offers":[{"title":"2.5inch \/ 201SS","offer_id":55940558651764,"sku":"WMR-UNI-MUF-SV-201-25","price":162.0,"currency_code":"USD","in_stock":true},{"title":"2.5inch \/ 304SS","offer_id":55940558684532,"sku":"WMR-UNI-MUF-SV-304-25","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0990\/7244\/2740\/files\/Electronicvalvemuffler_14_3.jpg?v=1789368721","url":"https:\/\/wanmaxracing.com\/products\/2-5inch-universal-single-inlet-single-outlet-electronic-valved-exhaust-muffler-baffled-internal-structure-twin-pipe-muffler-with-control-box","provider":"Wanmax Racing","version":"1.0","type":"link"}