Well, I tried the short ones. By the way, you can't use a BOSCH 02 Sensor and have this work. They won't fit, even after drilling them out. LUckily, I had an original O2 on a extra pre-cat!!
I got on the gas after I put this thing on, and at around 6500 RPM or so I heard a POP. I did it again from about 20 mph and again around 6500 RPM or so, I heard another POP. Decided to try one more time, and this time I didn't hear a pop, and again, I didn't hear a pop. I wonder what that could have been?
Anyway, we'll see if this fixes my P0420 code!!
