O2 Bung Extender
We do not recommend running without the rear o2 sensor because it could run the rear o2 test and reduce your gas mileage.
I had replaced stock catalytic convertor with high flow cat. had a p2270 code after installed O2 **** extender and resolved issue
Got rid of the codes being thrown. Would recommend.
Excellent, good delivery and the fitting works as advertised.
Great construction/welds. I purchased this to hopefully avoid a cel when switching to a catless DP. It has been a week, no cel
No more check engine light for catalyst efficiency.