304 Stainless Steel Exhaust Lambda Exhaust boss Nut Weld-on M18 x 1.5 O2 Oxygen sensor

Our 304 Stainless Steel Lambda Bosses are manufactured to an extremely high quality OE standard compared to others on the market; you will notice the wall is high enough as not to distort the thread when welding in place and a ridge to seat the sensor in place for a perfect fit.