Review on Enhance Engine Performance with Michigan Motorsports GREY 02 Oxygen Sensor Extension 🚀 Square 4 Pin LS1 LS2 O2 Wire Harness Gray – 24 Inches Long by Kevin Duhon

They work great on my LS6 and have proven to be of high quality. I have one from a major manufacturer Ordered a set of long tube connectors which were supposed to include O2 extensions but sent me the wrong ones for my 2004 Z06 (a classic mistake. They often send GM flat connectors instead of the correct square ones) however I got tired of waiting for that This manufacturer gets it right so I ordered these extensions and they arrived FAST and they worked great!A few weeks later I got a replacement set from the exhaust specialist but they're gathering dust because they're no better so I'm leaving them on the car.Will I recommend and buy again.