E63 W213 Stage 3 Turbo Upgrade — 800 to 1,000HP M177 Twin-Scroll Build Guide (2026)
The Mercedes-AMG E63 S W213 is the sleeper king of the M177 family — 603 HP from the factory, 4MATIC+ AWD, and twin-scroll turbochargers that respond to hardware upgrades differently than the C63's single-scroll setup. A Stage 3 turbo upgrade is where the E63 becomes genuinely dangerous: 800 HP on pump fuel, 1,000+ HP on a forged build with E85.
This guide covers everything specific to the E63 W213 Stage 3 build — the twin-scroll turbo differences, realistic power levels, supporting mods, cost, and why the E63 is arguably the best M177 platform for a Stage 3 upgrade.
Why the E63 Is Different — Twin-Scroll Turbo Architecture
The E63 W213 uses twin-scroll turbochargers where the C63 W205 and GLC63 X253 use single-scroll units. In a twin-scroll setup, the exhaust pulses from each pair of cylinders are separated by a divided turbine housing — this eliminates exhaust interference between firing cylinders and produces faster spool, more consistent boost delivery, and better transient response.
This matters for Stage 3 because the turbo upgrade kit must match the twin-scroll housing geometry. A C63 Stage 3 turbine wheel will not fit an E63, and vice versa. When buying a Stage 3 turbo kit for the E63, confirm it is specifically engineered for the W213 twin-scroll setup — not a universal M177 kit.
Stage 3 Power Levels — E63 W213
| Build Level | Fuel | Power (WHP) | Key Mods |
|---|---|---|---|
| Stage 3 — Street | 98 RON / 93 oct | 750–800 HP | Turbos, downpipes, ECU tune, plugs |
| Stage 3 — Full | 98 RON + WMI | 850–900 HP | + intakes, intercooler, water-meth |
| Stage 3 — Forged + E85 | E50–E85 | 900–1,000+ HP | Forged internals, fuel system, E85 cal |
The E63 S starts with higher factory boost and better factory cooling than the C63 S. Combined with the twin-scroll turbo efficiency and 4MATIC+ AWD, the E63 is typically 0.3–0.5 seconds faster in the quarter mile than a comparable C63 build at the same power level — the AWD launch advantage is significant.
E63 vs C63 Stage 3 — Head to Head
| Attribute | E63 S W213 | C63 S W205 |
|---|---|---|
| Factory HP | 603 HP | 503 HP |
| Turbo type | Twin-scroll | Single-scroll |
| Drivetrain | 4MATIC+ AWD | RWD |
| Weight | 1,960 kg | 1,770 kg |
| Stage 3 target | 800–1,000+ HP | 800–1,000+ HP |
| Quarter mile (850 HP) | ~10.0s | ~10.3–10.5s |
Required Supporting Modifications
Mandatory
- Catless downpipes — removes the exhaust restriction limiting turbine efficiency
- Stage 3 ECU calibration — platform-specific calibration for W213 twin-scroll boost targets, fuelling, and wastegate control
- Upgraded spark plugs — colder heat range
Strongly Recommended
- Upgraded intercooler — the E63 has better factory cooling than the C63, but above 800 HP the factory intercooler still becomes a bottleneck
- TCU tune — recalibrates the 9G-Tronic for higher torque. The E63's 4MATIC+ system handles power well but benefits from optimised shift points
- High-flow intakes — factory airboxes restrict flow above 700 HP
Above 850 HP
- Forged internals — M177 crate engine builds rated to 1,500 HP
- Upgraded fuel system — HPFP upgrade, port injection, or return-style depending on fuel and power target
Build Cost Estimate
| Component | Approx Cost |
|---|---|
| Stage 3 turbo upgrade (twin-scroll) | From $5,799 |
| Catless downpipes | $1,500–$2,500 |
| Stage 3 ECU calibration | $2,400–$3,400 |
| Upgraded intakes | $800–$1,500 |
| Intercooler upgrade | $1,500–$3,000 |
| TCU tune | $800–$1,200 |
| Installation | $2,000–$3,500 |
| Total — Street Build | $15,000–$20,000 |
Buy the E63 Stage 3 Turbo Upgrade
Shop E63 Stage 3 Turbo Upgrade →
Available now from YPG Motorsport. Free worldwide shipping. 1-year warranty. Contact us via WhatsApp for a complete E63 Stage 3 build package.