Firecore 50 8.5mm plug wires are a great upgrade for any LS1 needing better spark. The Firecore line benefits even a stock engine and can be found on 1000+hp applications as well. These are a direct fit for Chevrolet LS1 and similar engines.
This product includes the upgraded 45 degree Promod boots. If you want the standard boots, see this link: https://dynosty.com/shop/firecore-ls-plug-wires-with-promod-boots/