Subscribe to a magazine

Crossover Pipe

Back to article View Gallery
7 of 14
The crossover pipe is scribed to tie into the passenger-side downpipe, then lead into the cat. This YJ has an OBD-II Vortec V-8, which wants signals from O2 sensors before and after the cat. Sensor bungs are added to the tubing in approximately the OE Chevy proximities.