The SR20DET is a turbocharged inline-four engine produced by Nissan. It is part of the SR family of engines and is known for its performance and tuning potential. The engine has a displacement of 2.0 liters and features a DOHC design, making it popular among car enthusiasts and in motorsports. Originally used in models like the Nissan Silvia and Nissan 240SX, the SR20DET is celebrated for its robust construction and ability to handle significant power upgrades. Its turbocharger provides increased horsepower and torque, making it a favored choice for those looking to enhance their vehicle's performance.