Description
Professional M18x1.5 O2 Sensor Bung & Plug Kit – Premium Quality for Custom Exhaust Fabrication
🔧 PREMIUM MATERIALS & SPECIFICATIONS
- Bungs Material: 304 Stainless Steel – highly resistant to corrosion, heat, and oxidation
- Plugs Material: Zinc-plated mild steel for excellent corrosion resistance
- Thread Specification: Precision-cut M18x1.5 thread (standard for most oxygen sensors)
- Kit Contents: 2 weld bungs + 2 matching plugs (complete set for dual applications)
- Design Type: Notched style for superior weld penetration and strength
- Compatibility: Universal fit for all standard M18x1.5 oxygen sensors and accessories
- Finish: Clean, professional appearance suitable for visible installations
🔧 IDEAL APPLICATIONS
| Application | Benefits | Installation Notes |
|---|---|---|
| Custom Exhaust Systems | Allows precise placement of O2 sensors for optimal performance tuning | Install pre-catalytic and post-catalytic for comprehensive data |
| Performance Headers | Enables air/fuel ratio monitoring for optimal engine tuning | Position at least 18″ from exhaust ports for accurate readings |
| Downpipes | Essential for turbo system tuning and monitoring | Install at manufacturer-recommended distance from turbo |
| Catalytic Converter Installation | Monitors converter efficiency with before/after readings | Install one bung before and one after catalyst |
| Race Car Fabrication | Provides data points for dynamometer tuning and race-day adjustments | Position for accessibility during quick pit stops |
| Emissions Testing | Ensures proper monitoring for legal compliance | Place according to local emissions requirements |
🔧 KEY FEATURES & BENEFITS
- Notched Design: Special notched style provides superior weld penetration and strength, ensuring a leak-free connection even under extreme conditions
- Premium 304 Stainless Steel: Professional-grade material resists high exhaust temperatures, corrosion, and thermal cycling for long-term durability
- Precision Threading: Exact M18x1.5 threading ensures perfect fitment with oxygen sensors, temperature probes, and other exhaust monitoring equipment
- Zinc-Plated Plugs: High-quality plugs provide excellent sealing when sensors aren’t needed, with corrosion resistance for easy removal later
- Universal Compatibility: Works with virtually all automotive O2 sensors, wideband AFR sensors, EGT probes and similar M18x1.5 devices
- Complete Kit: Two complete sets give you everything needed for dual sensor installations or for separate projects
- Easy Welding: Designed specifically for straightforward TIG or MIG welding to stainless or mild steel exhaust components
🔧 PROFESSIONAL INSTALLATION GUIDANCE
- Location Selection: Choose sensor locations based on manufacturer recommendations – typically 18-24″ from exhaust ports for primary O2 sensors
- Preparation: Clean the exhaust pipe thoroughly at the installation point, removing all surface contamination
- Marking: Mark the desired location and drill an appropriately sized hole (typically 7/8″ or 22mm)
- Fitment: Position the bung over the hole, ensuring it sits flush against the exhaust pipe
- Welding: Tack weld in multiple points first, then complete the weld using appropriate stainless steel welding techniques
- Cooling: Allow the area to cool completely before installing sensors or plugs
- Threading: Apply anti-seize compound to threads before installing sensors or plugs to prevent future seizure
- Torque: Tighten sensors or plugs to manufacturer specifications (typically 30-35 ft-lbs)
🔧 COMPATIBLE SENSOR TYPES
- Narrowband Oxygen Sensors: Standard OEM-style O2 sensors for basic air/fuel monitoring
- Wideband Air/Fuel Ratio Sensors: Advanced AFR sensors for precise tuning (AEM, Innovate, PLX, etc.)
- Exhaust Gas Temperature Probes: EGT sensors with M18x1.5 threading
- Pressure Sensors: Exhaust back-pressure monitoring devices
- Data Acquisition Ports: Various motorsport data logging equipment
- Lambda Sensors: European-spec oxygen monitoring systems
- Emissions Testing Equipment: Professional diagnostic tools
🔧 PERFECT FOR VEHICLE MODIFICATIONS
- Engine Swaps: Essential for integrating modern engine management with custom exhaust systems
- Forced Induction Upgrades: Critical for properly tuning turbocharged or supercharged applications
- Custom Exhaust Fabrication: Professional-grade component for shop or DIY exhaust building
- Performance Tuning: Enables data-driven tuning for maximum power and efficiency
- Emissions Compliance: Helps maintain legal emissions status when relocating sensors during modifications
- Race Car Development: Provides mounting points for critical engine monitoring equipment
- Restoration Projects: Allows integration of modern sensors into classic vehicle exhaust systems
🔧 TECHNICAL ADVANTAGES
- Leak-Free Design: Precision machined surfaces create perfect sealing against exhaust gases
- Heat Resistant Construction: Maintains structural integrity even under extreme exhaust temperatures
- Corrosion Protection: Both bungs and plugs feature materials chosen specifically for harsh exhaust environments
- Precise Thread Pitch: Exact M18x1.5 threading ensures proper engagement and sealing
- Optimal Wall Thickness: Engineered for the perfect balance of strength and weldability
- Smooth Internal Profile: Minimizes exhaust flow disruption when plugs are installed
- Factory-Grade Finish: Professional appearance matches OEM components
🔧 APPLICATIONS BY VEHICLE TYPE
- Performance Cars: Honda, Toyota, Subaru, Mitsubishi, Nissan, Ford, Chevrolet, BMW, Audi, etc.
- Muscle Cars: Mustang, Camaro, Challenger, Charger, and classic American performance vehicles
- Trucks & SUVs: F150, Silverado, Ram, Tacoma, 4Runner, Jeep, Bronco, etc.
- European Performance: BMW M series, Mercedes AMG, Porsche, Volkswagen GTI/R, Audi S/RS models
- JDM Tuner Cars: WRX/STI, Civic/Integra, Evo, 350Z/370Z, Supra, Miata, S2000
- Diesel Performance: PowerStroke, Duramax, Cummins truck applications
- Off-Road Vehicles: Jeeps, rock crawlers, pre-runners, trophy trucks
🔧 COMPATIBILITY WITH EXHAUST MATERIALS
| Exhaust Material | Welding Recommendation | Special Considerations |
|---|---|---|
| 304 Stainless Steel | TIG welding with 308L filler / MIG with 308L wire | Optimal material match for direct welding |
| 321/409 Stainless Steel | TIG welding with appropriate filler / MIG with stainless wire | Excellent compatibility, common in factory exhausts |
| Mild Steel | MIG welding recommended / TIG possible with proper filler | May require special welding technique for dissimilar metals |
| Aluminized Steel | MIG welding with proper settings | Remove coating at weld area for better penetration |
| Titanium | TIG welding with proper shielding | Requires advanced welding skills for proper joining |
🔧 PERFORMANCE TUNING APPLICATIONS
- Dyno Tuning: Essential for accurate air/fuel ratio monitoring during dynamometer sessions
- Closed-Loop Tuning: Enables ECU to make real-time fuel adjustments based on exhaust gas composition
- Wideband AFR Monitoring: Provides mounting point for precision air/fuel ratio sensors
- EGT Monitoring: Allows installation of exhaust gas temperature sensors for monitoring critical temperatures
- Catalytic Converter Efficiency: Enables before/after testing of catalyst performance
- Exhaust Backpressure Testing: Can be used for pressure sensors to measure system restriction
- Data Logging: Critical mounting point for race and performance data acquisition systems
🔧 PROFESSIONAL INSTALLATION TIPS
- Sensor Placement: Install O2 sensors at least 18″ downstream from exhaust ports for accurate readings
- Avoid Condensation Points: Place sensors where condensation won’t collect and damage the sensing element
- Consider Accessibility: Position bungs where sensors can be accessed for future service or replacement
- Heat Management: Be mindful of extremely high-temperature zones that could damage sensor electronics
- Wire Routing: Plan sensor wire paths to avoid heat sources, moving parts, and road debris
- Thread Preparation: Always use anti-seize compound on sensor threads to prevent future seizure
- Exhaust Leaks: Ensure completely sealed welds to prevent false readings from intake air
🔧 QUALITY ASSURANCE
- Material Verification: Genuine 304 stainless steel bungs for maximum durability
- Thread Precision: CNC-machined threads ensure perfect sensor fitment
- Consistent Quality: Manufactured to strict tolerances for professional results
- Weld Testing: Design validated for optimal weld penetration and strength
- Corrosion Resistance: Materials selected specifically for harsh exhaust environment
- Thread Compatibility: Verified fit
