Technoresearch TR200045 O2 Bung Refill Kit

Complete kit to add 18mm x 1.5in. threaded bungs for O sensors and O tuning samplers. Remove heat shields, install bung and tune; when completed, use included screw and copper washer to seal bung and then replace heat shield for unaltered finish. No pump or sampling tube required and allows both cylinders to easily be monitored at the same time. No welding. Bung installation kit includes one hydraulic insertion tool, one drill bit, two O sampler blocks, tubing, 25 Rivnuts, 25 screws and 25 copper washers, all contained in plastic case. Refill kit PART #3807-0378 includes 25 each of bungs, plugs and copper washers, sold separately. Made in the U.S.A..