Performance Plus offers multiple levels of performance packages for your Camaro ZL1 ranging from basic bolt-ons to 4-digit horsepower race combinations. Our performance packages focus not only on maximizing performance, but retaining great street manners and giving ultimate reliability so that you can enjoy your new modified vehicle on both the street and track for years to come. Our performance packages include all pricing including installation and tuning by our trained staff. All horsepower levels are rated in average/estimated gains that we have seen in our 15+ years of experience in modifying these vehicles, but may vary depending on conditions and final package variations.