Review on MOSTPLUS Downstream Chevrolet Silverado Avalanche by Markus Calderon

Bought for my new 2007 Suburban LT body (2007 split model year). The top (sensor 1) sensors worked fine, the bottom (sensor 2) on both sides gave the circuit code immediately. In fact, only one top sensor failed, so I reinstalled the old bottom flow sensors. On the plus side, the sensors came with anti-seize on the threads and plastic caps around the threads. They were the right length and had connectors on the ends. I'm not sure if it's the wrong exit sensor or if both are defective.