Upgrades for Mercedes E500, CLS500, CLK500, S500 – M113 V8

Performance Parts for Mercedes M113 5.0L V8

The Mercedes M113 5.0L V8 is one of the most dependable and well-balanced naturally aspirated engines ever built. With its rock-solid bottom end, strong midrange torque, and classic V8 character, it’s no surprise these motors are still going strong 20+ years later. But like most factory Mercedes engines, they were tuned for quiet comfort — not performance. This collection is built to change that.

Wake It Up Without Compromising Reliability

Our M113 upgrades target the core areas where these engines are held back: restrictive exhaust, lazy throttle response, and soft ignition timing. Every part here is built to deliver sharper response, better sound, and more usable power — without sacrificing daily drivability or long-term reliability.

  • Ceramic-coated headers: Free up exhaust flow, reduce heat soak, and improve throttle response without triggering check engine lights.
  • Custom ECU tuning: Optimized to take full advantage of exhaust flow and unlock tighter throttle response and improved ignition timing. Optional burble or throttle maps available.

Recommended Supporting Mods

While not currently sold in this store, we strongly recommend pairing your upgrades with the following supporting mods for best results:

  • X-pipe: Helps balance exhaust pulses, improve scavenging, and smooth out tone — one of the few bolt-ons that can improve NA performance.
  • K&N drop-in air filter: A simple way to improve airflow and throttle response without heat soak risks from cone-style intakes.

Platform Fitment

All parts in this collection are built for the M113 5.0L V8 found in:

  • E500 (2003–2006)
  • CLK500 (2003–2006)
  • CLS500 (2006)
  • CL500 (2000–2006)
  • S500 (1999–2006)
  • ML500 (2002–2007)

📘 Read the NA V8 Exhaust Guide