Enhance the performance of your custom exhaust system with our precision 304 stainless steel O2 bung featuring innovative heat sink fins. This weld-on oxygen sensor bung ensures optimal sensor function by maintaining ideal operating temperatures. Crafted to withstand the harshest conditions while delivering superior durability, it's an essential upgrade for anyone serious about quality and performance. Elevate your vehicle's exhaust efficiency with this premium component, meticulously engineered for our loyal enthusiasts.
 
High-quality 304 stainless steel
M18 × 1.5 (universal fit for most O₂ sensors)
Lipped, finned heat sink—built-in for optimal performance