Renntech already has the M133 inline-4 in the CLA45/A45/GLA45 AMG over 400 horsepower with Stage I tuning
Remember when BenzBoost posted that the new 2.0 liter M133 AMG four-cylinder is underrated
? Many BenzBoost users started speculating there would not be room to tune the motor or that it would not be tuner friendly due to its high amount of boost from the factory turbo
. Well, Renntech is already showing over 400 horsepower with just their Stage I tune. The SuperFlow dyno shows 414 horsepower tune only (361 to the wheels) which is a gain of 25 horsepower over stock.
25 horsepower tune only on an underrated 2.0 liter four-cylinder car with 26 psi of boost stock? Not too shabby especially considering this is just the beginning.
The videos below also show the performance increase of the tuned car versus the stock car. 0-60 goes down to 4.0 seconds flat from their testing of 4.6 stock and the 0-124 mile per hour time improves to 14.5 seconds from 17.6. Very, very impressive.
The cars with the M133 motor are going to be a lot of fun for tuners and a staple of the Mercedes tuner scene in the coming years.