Mercedes M113K Performance Upgrades – E55, CLS55, SL55, S55, G55 AMG

Unlock the full potential of your supercharged 5.4L M113K V8 with proven, purpose-built upgrades. Whether you're chasing dyno numbers or simply want a faster, more reliable street car, this collection is curated to help you get there.

🚀 Performance Upgrades That Deliver

• ECU Tuning: Gain up to +80 HP and +100 lb-ft with our custom flash, optimized for pulley upgrades, headers, and high-octane fuel
• Fuel & Air: 550cc and 630cc injectors, 3” intakes, 82mm throttle body, E85 conversion
• Cooling: Bosch 010 intercooler pump, 3.5L trunk tank, oil catch can kits
• Exhaust: Mid-length and log-style headers for reduced backpressure and increased flow
• Drivetrain: Wavetrac LSD, Street Valve Body v2, 722.6 blue top solenoids
• Pulleys & Support: Smooth idlers, mini pulleys, and hardware for high-boost reliability

🔒 Engineered for Boosted Reliability

Every item here has been tested, vetted, and run by M113K enthusiasts. We don't list fluff — just hard-hitting upgrades that make your AMG stronger, faster, and more capable across the board.

Whether you're doing your first tune or going all-in with injectors, headers, and cooling, this is your one-stop shop for serious M113K performance.