--- 2018 Mercedes-Benz E400 Coupe — Euro Star Performance Stage 3+ Build The Fastest W213 E-Class Coupe. Period. This E400 isn’t just tuned — it’s completely re-engineered by Euro Star Performance to deliver supercar-level performance and reliability. Every component has been upgraded with precision, from the ECU to the fuel and cooling systems, to achieve a perfect balance of power, response, and control. --- Performance & Powertrain Euro Star Performance Stage 3+ ECU & TCU Full Tune – calibrated for maximum torque delivery and flawless shift logic. AMR CPC full replacement – reprogrammed for high-clamp torque management. Weistec Downpipes – high-flow, catless stainless for maximum spool and tone. Wagner Tuning Aftercooler System – full upgrade for cooler IATs and heat efficiency. MST Full Intake System – optimized for airflow and throttle response. TurboSmart Custom Electronic Boost Control System – dual-path internal/external configuration, individually controlled per bank. Innovate SC1 Boost Gauge with integrated wideband AFR monitoring. --- Methanol Injection & Power Management AEM Dual-Nozzle V4 Methanol System – controlled via glovebox-mounted progressive controller. Automatic meth activation from 14–33 PSI, delivering up to 1800cc spray volume via dual custom tanks on full carbon-fiber panels. Configurable H₂O/Meth blend or pure methanol mode. --- Performance Figures Current 93 Octane Tune (28 PSI) → 692 HP / 590 FT·LB Race Blend / 110 Octane + Methanol (33 PSI) → 724 HP / 710 FT·LB 0–60 MPH: ~3.0 seconds with proper launch. No check-engine lights. No compromise. Fully optimized drivability. --- Exhaust & Sound Rear Muffler Deletes – deep, exotic tone without drone. Weistec downpipes + full exhaust system deliver an aggressive, yet refined note worthy of AMG competition. --- Aesthetic & Custom Work Custom Red & Black Performance Steering Wheel – bespoke hand-made piece (6-month lead time). Ferrada 20” Staggered Wheels – perfect stance and traction balance. Custom made Carbon fiber wall with dual Meth Tanks & highest quality injection pump– show-quality finish and race-grade utility. --- Summary Over $43,000 invested in top-tier parts, tuning, and fabrication. This E400 Coupe stands as the fastest, most finely tuned W213 two-door known — potentially a record-setting build in its class. Built for the enthusiast who wants supercar performance with Mercedes luxury, this machine is a masterpiece of precision engineering and tuning excellence. A Euro Star Performance flagship build — one of one. ---