The Gen III LS1 engine factory-installed in '98-'02 Firebirds, '04 GTOs and the Gen IV LS2 between the fenders of the '05-'06 GTOs are excellent powerplants. Current LS2 engines are rated at 400 hp ...
Most owners of bone-stock, or near-stock, LS1 vehicles have heard of handheld tuners. These wondrous little devices are best known for the ability to flash in a performance tune into the ECM-removing ...