6 month old rough country cold air. For Jeep jk 2012-2018. Had to sell Jeep with stock set up. Easy bolt on with all hardware included. This works great and as described on site: Improved Power and Performance. Intense off-roading adventures require efficient engine cooling. That’s what this Rough Country Cold Air Intake provides. Its high-flow design offers superb cooling by drawing in more cold air than your factory intake. This results in improved engine performance with increased power, so you can push your Jeep Wrangler to the limit with superb performance. No Tune Required. This cold air intake installs without the need for tuning. It has already been configured according to your Jeep’s set up to ensure trouble-free installation. However, ExtremeTerrain recommends a custom tune to reprogram your Jeep’s (ECU) for best results. Efficient Air Filter. The air filter included in this Rough Country Cold Air Intake has been specially designed to filter out contaminants more efficiently. This ensures that the engine stays clean, even after those adventures on dusty roads. Highly Durable Construction. This cold air intake has been specially engineered to replace your Jeep Wrangler's worn-out factory air intake. It has been built using highly durable materials to ensure longer-lasting performance, even after several uses in intense driving situations. Bolt-On Design. This cold air intake snaps on to your vehicle’s engine. Its bolt-on design allows you to install it using your Wrangler's factory mounting points without the need for special modifications.