WHAT IS IT?
CLA45 AMG features the world’s most powerful four-cylinder series production engine. A stock 2.0-liter turbo four CLA45 AMG pumps out 355-hp and 332 lb-ft of torque through all four wheels. The Mercedes M133 engine is the world’s most powerful production four-cylinder in terms of horsepower per liter of displacement and the world’s most powerful production engine.
Air intake by Mishimoto, Downpipe & Midpipe by Weistec, and a stage 1 tuned by Eurocharged Performance. With the list above, it produces 420HP