This is a dual gauge pillar pod for your 16+ Alpha chassis Camaro. This is not a typical cheap gauge pod that mounts to your stock pillar. This completely replaces your stock A pillar. You simply just un-clip your factory A pillar, take the metal clips off of the stock pillar and put them on the new gauge pod. Then just clip it right in. No drilling at all! It is recommended when installing that you disconnect your battery as there is an airbag is located behind it. This is not some cheap universal gauge pod that you see on eBay. Its high quality. The material is similar, but stronger than the OEM GM stock A Pillar. It uses 52mm or 2 1/16" gauges. You will re-use the metal clip from your OEM A pillar pod. Fits 2016-Present Camaro models