This new Black Label Aluminum Fuel Rail Kit is designed for customers running the stock nylon LS7 intake manifold with the longer standard length Bosch injector. The kit is perfect for engines running custom crate engines with LS7 cylinder heads and multipoint fuel injection. The rails improve fuel rail volume, are light weight, and black anodized for a crisp clean look. There are no modifications needed and the kit comes with laser engraved rails, mounting brackets, and hardware for a hand tool bolt on installation. Custom Mast fuel rail fittings are available.