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.
These downpipes are the hardware prerequisite for Stage 2 power. Pair them with the matching ECU tune to extract the full gains.
View Stage 2 Tune →
