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 switched to a 2.5 zzp exhaust and this worked great for keeping the engine light off with the increased exhaust flow A must have
I had no idea what I was doing at first. I bought two of these and put them on each O2 ****. I found out later that you do not need one of these on the first O2 **** location because it is before any cat and will cause your car to think it is running lean then throw a CEL too. Everything works as advertised once I went ahead and used 2 of the straight extenders and one 90 degree elbow extension. I don't think I'll ever get another CEL triggered by the 2nd bank location ever again now!
These guys are such pros! The fit and finsh is 5 times better than the pic. Locking ring for the long threads to dial in perfect distances is sweet!! Completely fixed me CEL problem with a performance exhaust. Highly recommend. Great price awesome part!
It all worked perfectly once I had the parts in the right order!