Oxygen Sensor Boss & Blanking Plug Set Mazda it ensures a perfect fit

it ensures a perfect fit and superior strength

We have our Coil Conversion Wiring Loom for RB20

designed to reduce oil temperatures effectively without causing excessive pressure drop

and screws up to a shoulder to confirm correct fitment

and incorporated eccentric fasteners to compensate for the different bolt pattern of the two manifolds

Oxygen Sensor Boss & Blanking Plug Set Mazda it ensures a perfect fitA steel lambda oxygen O2 wideband boss for welding into your exhaust system, complete with blaking plug and copper washer. M18x1. 5 thread compatible with most aftermarket and factory oxygen sensors CNC machined for exact tolerances Available in mild steel and stainless steel to suit different exhausts Can be MIG, TIG or gas welded The parts are also available separately, please check our other listings.