The tuning firm massaged the naturally aspirated ... and built a naturally aspirated version of the bi-turbo M157 engine for ...

Among those nutters we find the American tuning specialists from AMS Performance ... about Mercedes-Benz understating the power of the M157 engine in the US, something which is slowly developing ...

The latest Brabus tuning package for the Mercedes-Benz ML ... an all-new roaring exhaust system and a Brabus ECU, the M157 engine no longer delivers 525 hp (or 557 hp with the Performance Package ...

And as Lieberman discovers, the facility, tools, and assembly process has been meticulous engineered to ensure these world class engines are none other than perfect. In standard form, the M157 ...

Long our choice among the modern folding-hardtop versions, the burly SL63 AMG gains even more power for 2015 as AMG endows its M157 twin-turbocharged 5.5-liter V-8 with the latest tuning.

The new M157 5.5-liter turbo V-8 beats the 6.2-liter engine's output with 536 horsepower and 590 pound-feet of torque, all while yielding 25 percent better fuel economy, so it will only be ...