Weld-on mild steel O2 bung. Universal 18mm for most common wideband or OEM o2 sensors!Cap Not included.Universal mild steel weld-on o2 bung, could be welded to mild-steel, steel, and stainless...
Stainless Steel slip-on section that would step up 1.375" and 1.5" to 2", which would allow a muffler with 2" I.D. to slip over. The slip on section is perfect...
