Redline Tuning 21-11014-02 Hood QuickLIFT PLUS System (All Black Components & 4 year warranty) Compatible for Ford Mustang 1999-04 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. Progressive 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. Quick and simple installation - we design and manufacture all components in our QuickLIFT systems, including our documentation. Full color installation manual will arrive with QuickLIFT system, enabling anyone through this simple installation - our customer comes first. Redline Tuning's 21-11014-02 Hood QuickLIFT PLUS System (All Black components, 4 year warranty) is designed to work with stock and aftermarket hoods compatible for Ford Mustang model years in listing.