90 Degree Angled Universal O2 Spacer Adapter Extender with M18 x 1.5 Holes

This thing works. Tricked the oxygen sensor into thinking the cat is good.

no more po430 trouble code, installed on the downstream. I have a new (california) cat and kept getting the po-430 code. this fixed all that. I will require a 45 degree angle to get to the upstream, but this solved my problem. (installed in the downstream of 07 silverado 5.3)

Solved problem on 2003 Audi A4 1.8t - needs various thickness sealing washers to adjust position, otherwise a good product.

Perfect for tight spots so if you put headers on vehicle and o2 sensor is to tall & hitting frame these are what to get

Product was simple and perfect for clearing the CEL on a “cat-less” header system. The lean codes went away and tricked the rear O2 sensors.

Excellent quality product, worked perfect. Make sure you tighten in bung and align before welding so that it ends up pointing where you want it

It seemed to helped clear code

Very easy to install, male side should be about a half inch longer for clearance.