M157

Mercedes AMG M157 Twin-Turbo V8

The M157 is AMG’s twin-turbo 5.5L V8 — a modern, force-fed powerhouse that balances torque, responsiveness, and tuning potential.
If you own an E63, C63 (for markets where M157 was used), or AMG-equipped model with M157, this page lists compatible upgrades.

The M157 engine is a 5.5L twin turbo v8 hand built by Mercedes AMG.  This is a monstrous engine that can make over 700 hp with slight modifications and a tune.  Combined with a tcu tune these provide a unique experience of torque.

Specs & History

  • Displacement: 5.5L (5461 cc) V8 with twin turbocharging
  • Power Output: Stock AMG output ranged ~518–577 hp depending on model and tune
  • Usage: Featured in E63 AMG (W212, W213 in certain markets) and some high-output variants
  • Engineering Notes: Balanced between torque at low rpm and high-end flow capacity
  • Limitations: Turbocharger, cooling, and exhaust systems become crucial at high power levels

Performance & Upgrade Paths

  • Software calibrations (ECU / TCU) to fully utilize boost and torque
  • Upgraded intercoolers, charge cooling, pumps
  • Turbo upgrades / hybrid turbos / custom turbo fitment
  • Fueling upgrades (injectors, pumps) for richer maps or ethanol blends
  • Exhaust / downpipe / headers to reduce restriction

Browse M157-Compatible Parts

Why Upgrade the M157?

  • High Torque Platform: Excellent torque across the rev range — supporting mods help preserve that under high power.
  • Thermal Challenges: Cooling upgrades are essential when pushing boost.
  • Flow Matching: Matching turbo, cooling, exhaust, and fueling parts is key to reaching high output reliably.

Showing 1–16 of 30 resultsSorted by popularity