ZR1 Stage 2 Performance Package Stage 2 includes everything from our Stage 1 Performance Package, plus American Racing Headers 2-inch long tube headers and X-pipe The Omni Motorsports Stage 2 Performance Package builds upon the foundation of our Stage 1 package by significantly improving exhaust flow, allowing the LS9 to make more power while improving overall engine efficiency. By adding American Racing Headers 2-inch long tube headers and a matching X-pipe, this package reduces backpressure, improves supercharger efficiency, and delivers the aggressive exhaust note every ZR1 owner is looking for. Combined with our Stage 1 fueling and flex fuel upgrades, Stage 2 creates a well-balanced package that offers exceptional street manners while producing a substantial increase in horsepower and torque. This is the ideal package for customers looking to maximize the performance of a stock camshaft LS9 before moving into more extensive engine modifications. Package Includes: Injector Dynamics ID1050X Fuel Injectors OMS Flex Fuel Kit GripTec Upper Supercharger Pulley Gates Performance Belt NGK Spark Plugs American Racing Headers 2-Inch Long Tube Headers American Racing Headers X-Pipe Professional Dyno Tune Full Synthetic Engine Oil & Filter Service Benefits Increased horsepower and torque Improved exhaust flow and reduced backpressure More aggressive exhaust tone Flex fuel capability (E85 or pump gas) Increased supercharger efficiency Improved throttle response OEM-like drivability and cold-start performance Recommended Supporting Modifications Upgraded cooling system for customers who frequently race or drive in hot climates Ported OEM supercharger for customers looking to continue into Stage 3 Out-of-State Customers For customers outside of Southern California, this package is also available without dyno tuning and oil service. All parts can be shipped directly to your preferred installer or performance shop, and the package price will be adjusted accordingly. Contact us for shipped package pricing or to discuss your specific build.
