Turbochargers enhance engine efficiency and power, and Cat® Exhaust Bypasses protect the engine and the turbocharger by allowing exhaust gases to escape the engine quickly, regulating the maximum boost pressure in turbocharger systems. Cat Exhaust Bypasses are designed, manufactured, and tested to withstand the extreme temperatures and pressures inside your engine. Each unit is tested against stringent Caterpillar specs so you know you’re getting genuine Cat quality and reliability.