ECU+ Upgrade HHT Hand-Held Tuner

The RENNtech ECU+ Upgrade is a computer chip and module designed to unlock the full potential of the W213 E63 AMG S 4MATIC+ equipped with the 4.0L V8 BiTurbo M177 engine, specifically for model years 2018 through 2023. This sophisticated system leverages RENNtech's HHT (hand-held tuner), which provides the user with the flexibility to switch between the RENNtech tuned file and the vehicle's original stock ECU programming. The process is non-invasive, requiring no ECU removal, and the proprietary tuning module connects directly to the vehicle's OBD2 port for quick and easy file delivery. Programming can be accomplished in mere minutes, and the vehicle can be re-flashed an unlimited number of times. With decades of experience in ECU tuning, RENNtech has developed this upgrade through extensive in-house research, development, and rigorous testing. The result is a performance enhancement that delivers significant gains in horsepower and torque across the entire power band. By precisely modifying ignition timing, throttle mapping, air-to-fuel ratios, increasing the engine's rev limiter, and optimizing boost mapping for the turbo-charged engine, this ECU tune unleashes the true performance capabilities of your Mercedes-AMG. This upgrade is specifically engineered for the Mercedes-Benz W213 E63 AMG S 4MATIC+ with the 4.0L V8 BiTurbo M177 engine from model years 2018-2023. It is noted that the M177 engine's stock performance often exceeds factory-rated figures. The RENNtech ECU+ Upgrade is capable of achieving up to 773 HP and 778 LB-FT of torque at the crank. To ensure optimal performance and engine health, a minimum of 93+ Octane gasoline is mandatory. For vehicles operating in regions with known poor fuel quality, a lower power setup may be necessary; RENNtech advises contacting them directly for such configurations or race fuel options. Furthermore, the RENNtech HHT system is EPA Emissions compliant and street legal in all 50 states, having received a CARB Executive Order based on emissions testing and engineering evaluation. This ensures that the product does not compromise the effectiveness of the vehicle's original pollution control systems. Performance testing has shown dramatic improvements, with the tuned vehicle achieving 0-60 mph in as little as 2.79 seconds and completing the quarter mile in 10.88 seconds at 128.72 mph when equipped with launch control.