Mercedes-Benz G63 W463 Catless Downpipes — M157 5.5L Twin-Turbo V8
YPG Motorsport catless downpipes for the Mercedes-AMG G63 (W463, 2012–2018) replace the factory catalytic converters on the M157 5.5L twin-turbo V8 with mandrel-bent stainless steel pipes. The G63 is already one of the most iconic AMG models on the road — and removing the factory cats transforms the exhaust note from reserved luxury to full-throated AMG V8 while unlocking meaningful power gains.
When paired with a Stage 2 ECU calibration, the G63 delivers significantly improved power output, faster turbo spool, and the deep, aggressive exhaust note that G-Wagon owners are looking for. The reduced backpressure also lowers exhaust gas temperatures — critical for sustained performance in GCC heat.
Compatibility
- 2012–2018 Mercedes-AMG G63 (W463)
- M157 5.5L Twin-Turbo V8 (544 HP)
Key Specifications
- Material: Low-carbon 304 stainless steel
- Construction: TIG welded, hand finished
- Flanges: CNC-machined 304 stainless — OEM mounting points
- Fitment: Direct OEM replacement — bolt-on, no fabrication required
- Origin: Made in Germany
- Warranty: Lifetime
What's Included
- 1× pair stainless steel catless downpipes
- All necessary bolts, gaskets, and clamps
Installation
Professional installation recommended. A Stage 2 ECU calibration is required to eliminate the CEL and unlock the full power gains. YPG Motorsport offers remote ECU flashing worldwide — OBD2 tool shipped to your door, guided session, 30–45 minutes, fully reversible to stock.
Why YPG Motorsport
Since 2011, YPG Motorsport has been the GCC's go-to source for AMG performance hardware and calibration. The G63 is one of the most popular platforms we work with across Kuwait, Saudi Arabia, and UAE. Ships worldwide with free delivery.