BOSCH 15740 Premium Universal Fit Oxygen Sensor - Compatible with Most Vehicles - Improve Fuel Efficiency & Engine Performance - Ideal for Car Maintenance & Repair

Since this is a universal type O2 sensor it came with no connector which I expected and planned for. What I did not plan for was it to only include the O2 sensor and not the butt connectors or anything else in the product image. I should take a star off from it but enough morons are taking stars off for it being exactly what they should have expected so I wont. I planned to wrap mine in shrink wrap and some specialty hose anyway. I had to buy butt connectors though since this is supposed to come with them.I replaced my Denso(possibly stock) post cat O2 with this in late Feb. I had to have the check engine light gone for March to pass inspection. I knew the check engine light was for my post cat O2 so I picked this up. The weekend after installing it I went on a cruise put roughly 500 miles on the car in a single day. This put me way outside the ready period and we stopped a few times so this was a pretty good stress test. I passed inspection mid March without a single issue.For those of you that have never replaced a O2 sensor before here are some tips. It was my first time doing this too.Don't bother trying to solder(some cars might be OK).By a ratcheting butt connector crimper. I tried use pliers, dikes, even a racheting clamp. Those things are HARD to crimp.Make sure you have enough room to work and everything within reach. Climbing out from under the car every time you need a different tool or part is no fun.get extra butt connectors. I had a few not get a good grab on the wire and it pulled lose with a slight tug. Since it was already crimped I couldn't reuse it.GIVE YOUR SELF EXTRA WIRE TO WORK WITH. Because of the issue above this one I had to cut my wires more times than I would like. Luckily I gave myself a lot of extra wire to work with. I suggest you do the same.