Akrapovič Mercedes-AMG G 63 (W463) Catless Downpipe
The Downpipe Set w Cat (SS), developed in conjunction with the Evolution Line (Titanium) system, is an essential performance upgrade for enhanced exhaust tuning. This sporty stainless-steel downpipe set, equipped without catalytic converters, optimizes sound and performance by providing a more unrestricted exhaust gas flow. The high-flow design reduces back pressure, allowing the engine to breathe more freely, leading to increased power and torque throughout the rev range.
Fitting this downpipe set requires an ECU remap to ensure proper performance and to prevent any potential check engine light issues due to the removal of the catalytic converters.
Important Notice:
- This product is designed for closed-course use only and does not meet emission compliance requirements for street or highway use.
Exhaust Data
| Unit | Stock | Akrapovič | Max gain | |
|---|---|---|---|---|
| Max. power | kW | 415.9 / 5500 rpm | 429.4 / 5350 rpm | + 15.8 / 5350 rpm |
| HP (m) | 565.4 / 5500 rpm | 583.8 / 5350 rpm | + 21.5 / 5350 rpm | |
| HP (i) | 557.7 / 5500 rpm | 575.8 / 5350 rpm | + 21.2 / 5350 rpm | |
| Max. torque | Nm | 781.3 / 2600 rpm | 804.4 / 4100 rpm | + 39.6 / 4050 rpm |
| lb-ft | 576.3 / 2600 rpm | 593.3 / 4100 rpm | + 29.2 / 4050 rpm | |
| Weight | kg | 12.5 | 6.8 | – 5.7 |
| lb | 27.6 | 15 | – 12.6 | |
| % | – 45.6 | |||
| Volume | dB | 93 / 3750 rpm | 100 / 3750 rpm | 7 |
| Inst. time | min | 60 |

