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Wanmax Racing
3 Inch Mirror Polished Pneumatic Valve Exhaust Muffler Silencer Kit With Wireless Remote Air Tubing Fitting SS304 SS201 Optional
$175.00
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CODE: WMR-UNI-MUF-PV-201-30
Categories: Valved Muffler
100% ORIGINAL AND QUALITY
24 MONTHS GUARANTEE
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DESCRIPTION
Transform your vehicle's driving dynamic instantly with our Universal Vacuum Valve-Regulated Performance Muffler.
Designed for automotive enthusiasts who demand the best of both worlds, this system allows you to alternate between a deep, aggressive race-ready growl and a quiet, neighbor-friendly street cruise at the push of a button.
Crafted with premium grade stainless steel, this variable acoustic muffler functions via a precision-engineered vacuum valve system. When closed, exhaust gases pass through the high-density sound dampening chambers for maximum noise reduction. When opened, the valve creates an optimized straight-through bypass path, minimizing backpressure and unleashing your engine's true performance and acoustic potential.
VEHICLE FITMENT
- Fitment Type: Universal Fitment.
- Compatibility: Compatible with a wide range of cars, trucks, and SUVs equipped with custom or aftermarket petrol/gasoline exhaust setups.
- Engine Type: Best suited for naturally aspirated, turbocharged, or supercharged engines.
- Note: This is a weld-on universal component. Fabrication, cutting, and welding of your existing exhaust piping are required for a proper, leak-free installation.
KEY FEATURES
- Dual Sound Modes: Seamlessly switch between stealthy quiet mode and high-performance race sound using the included remote fob.
- Premium Material Options: Available in cost-effective 201 Stainless Steel for standard setups, or ultra-durable 304 Stainless Steel for ultimate corrosion and rust resistance.
- Precision Vacuum Valve: Driven by an airtight pneumatic/vacuum valve actuator that responds instantly to the electronic controller.
- Optimized Internal Flow: Features a high-density, heat-resistant acoustic packing material that eliminates raspy frequencies while retaining a clean tone.
- Complete Electronic Kit: Packaged with a reliable controller, extended wiring harnesses, a 12V car charger power adapter, and a wireless remote for a true plug-and-play control setup.
TECH SPECIFICATIONS
- Product Type: Dual Mode Variable Exhaust Muffler Box
- Valve Operation Type: Vacuum Actuated / Pneumatic Valve
- Available Inlet/Outlet Sizes: 2.0 inch (51mm) / 2.5 inch (63mm) / 2.75 inch (70mm) / 3.0 inch (76mm) / 3.5 inch (89mm)
- Material Quality: Grade 201 Stainless Steel / Grade 304 Stainless Steel (Selectable)
- Surface Finish: High-Gloss Mirror Polished
- Controller Input Voltage: 12V DC via cigarette lighter power adapter
- Connectivity: Wireless RF Remote Control
WHAT'S IN THE BOX
- 1x Premium Stainless Steel Variable Valve Muffler Assembly
- 1x Valve Signal Receiver Controller (Red Case)
- 1x Wireless Remote Control Key Fob
- 1x 12V DC Car Charger Power Supply Cable
- 1x Extended Valve Signal Control Wiring Harness
- 1x T-Fitting & Connecting Accessory Pack
INSTALLATION GUIDE & PRECAUTIONS
Installation Steps:
- Positioning: Safely hoist the vehicle. Find a flat, clearance-friendly section of your mid or rear exhaust pipe to replace with the valve muffler.
- Welding: Measure and cut the factory pipe. Professional TIG/MIG welding is highly recommended to secure the muffler inlets and outlets firmly without exhaust leaks.
- Power Routing: Route the 12V power adapter through the vehicle cabin body plugs into the center console cigarette lighter socket.
- Wiring & Actuation: Run the wire harness along the undercarriage away from direct high-heat components (like the exhaust manifold or catalytic converter) and connect it safely to the pneumatic valve actuator.
Important Precautions:
- Professional Required: Do not attempt to install this product using clamps or tape. It must be welded into place by a professional exhaust technician.
- Heat Clearance: Keep all electrical wires and control lines at least 6 inches (15cm) away from moving suspension parts and high-temperature exhaust pipes to prevent melting or tearing.
MEASUREMENT CONFIRMATION
Before placing your order, please perform the following crucial steps to guarantee fitment:
- Measure Your Exhaust Pipe OD: Use a digital caliper to measure the Outside Diameter (OD) of your vehicle's current exhaust piping. Choose the matching option from our 2", 2.5", 2.75", 3", or 3.5" sizes.
- Check Under-Car Clearance: Ensure there is sufficient physical width, length, and height clearance underneath your chassis to accommodate the dual-bypass muffler body shape.
- Confirm Piping Alignment: Note that this muffler utilizes an offset/center multi-port design. Verify your original layout can accommodate the geometry of this unit.
TROUBLE-SHOOTING GUIDE
-
Issue: The valve does not open or close when the remote button is pressed.
- Solution 1: Check the LED indicator on the wireless remote. If it is dim or unlit, replace the remote control battery.
- Solution 2: Ensure the 12V car charger power adapter is pushed securely into the socket and that the power indicator light on the adapter is glowing.
- Solution 3: Check all wiring harness connectors between the controller and the muffler valve to ensure they are fully clipped together and dry.
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Issue: There is a rattling noise coming from the muffler when driving.
- Solution: Check for physical contact between the muffler body/valve linkage and the vehicle's chassis or heat shields. Adjust the rubber exhaust hangers to increase clearance if necessary.






