The RAI J-pipe that can be threaded into any factory 02 sensor bung and will work for any exhaust system. It features 3 different inserts which allow you to fine tune how much exhaust flow your secondary O2 sensor reads. This is the perfect method to clear a stubborn CEL.

We use them on all our systems to make sure there are no CELs, with or without a catalytic converter. These pipes also make oxygen sensor installation easier. by moving the O2 sensor perpendicular to the exhaust pipe. The RAI J-pipe is made out of T304 stainless so it will never rust and it's built to last the life of your car.