Boost your rig with the Western Star Constellation Engine-Performance category. This selection includes high-performance turbochargers, fuel systems, exhaust components, and diagnostic tools designed to improve power, fuel economy, and reliability. Find turbochargers for Detroit 12.7 60 Series and Cummins ISX engines, fuel pumps, and systems from trusted brands like FASS. Also included are mufflers and exhaust parts for better efficiency and quieter operation. Whether optimizing engine power or improving performance, this category has everything you need.