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RENNtech R3 Performance Package | E 63 (S) AMG | W/S 213 | 875 HP / 871 TQ | 4.0L V8 BiTurbo | M177 | MY2019+ R3 Performance Package for Mercedes-AMG E63 (S): ECU Upgrade (HHT), Stage 1 Turbo Upgrade, Mufflers, Carbon Fiber Airboxes, TCU, CPC, Fuel Management System, BOV, EVM, BMC Air Filters Description The Mercedes-AMG E63 (W/S 213) is powered by the latest V8 BiTurbo -engine developed by AMG, the company’s Affalterbach based performance division and long fabled engine builder. The result is nothing short of spectacular and the 4.0L V8 BiTurbo engine is an incredible platform to build performance upon.  RENNtech’s R1, R2, R3, and R3+ are vehicle specific performance packages, engineered to increase vehicle power output while ensuring all upgrades work in sync, resulting in optimal overall performance. Increasing performance in stages offers a clear path toward the desired development goal. Starting at R1, moving forward is easy and gives owners the ability to evaluate the impact of each level of modification through the stages. Owners can also plan and budget for additional modifications, making the ultimate build more affordable in the long run. R-Line Comparison: Vehicle Package HP Gains TQ Gains W/S213 - AMG E 63 Stock 681 HP   736 LB-FT   W/S213 - AMG E 63 ECU Upgrade 773 HP +92 HP 778 LB-FT +42 LB-FT W/S213 - AMG E 63 R1 Package 793 HP +112 HP 788 LB-FT +52 LB-FT W/S213 - AMG E 63 R2 Package 803 HP +122 HP 818 LB-FT +82 LB-FT W/S213 - AMG E 63 R3 Package 875 HP +194 HP 871 LB-FT +135 LB-FT W/S213 - AMG E 63 R3+ Package 1,017 HP +336 HP 873 LB-FT +137 LB-FT   The R3 upgrade features RENNtech’s Stage I turbochargers with lightweight forged billet turbo wheels with a larger impellers (inlet side) and an increase in the turbine trim (exhaust side). The combination of high quality, lightweight components compensate for turbo lag despite being a functionally larger turbo. The cartridge supporting shaft is both larger and stro