Redline Tuning 21-11028-02 Hood QuickLIFT PLUS System (All Black Bolt in Components, 4 year warranty) Compatible for Ford Mustang 2015-2017 Redline Tuning's 21-11028-02 Hood QuickLIFT PLUS (All Black Components, 4 year warranty) compatible for Ford Mustangs with stock or aftermarket hood, also right-drive (non-north american) Ford Mustang models are supported with this design. This product will NOT work with the 2016+ GT350 Mustang, purchase 21-11030 for GT350 application. Progressive-rate gas springs. Redline Tuning gas springs are not off the shelf parts, they are designed by us and manufactured to our specifications for each vehicle application. Our exclusive end-of-force dampening slows the rate of extension over the final inches of travel eliminating stress to the hood. 5 minute installation time - we design and manufacture all components in our QuickLIFT systems, including our documentation. This system utilizes bolt-in locations - you do NOT have to remove your hood to install our system. Our attachment system is patent-pending - we were first to market with our QuickLIFT System, this is the best engineered system on the market. Simple one-handed operation, simply start to lift the hood and it will raise to the stock height unassisted in a smooth and controlled motion. Redline Tuning is the leader in aftermarket hood QuickLIFT systems, selling our systems worldwide since 2002. Full color manuals will arrive that will walk you through this simple installation - our customer comes first.