Mercedes-Benz W205 C43 Catless Downpipes — M276 3.0L BiTurbo V6
YPG Motorsport catless downpipes for the Mercedes-AMG C43 (W205, 2018+) replace the restrictive factory catalytic converters on the M276 3.0L BiTurbo V6 with mandrel-bent stainless steel pipes. The M276 responds extremely well to exhaust modifications — the factory cats are the single biggest flow restriction in the system, and removing them delivers immediate gains in turbo spool, throttle response, and exhaust note.
When paired with a Stage 2 ECU calibration, the C43 delivers 440–480 HP and 450–480 lb-ft of torque — enough to trade punches with a stock C63 S in straight-line performance at a significantly lower purchase price. For 2019+ models, a CPC (Central Powertrain Controller) flash is required alongside the ECU tune to unlock full power.
Compatibility
- 2018+ Mercedes-AMG C43 (W205 Sedan)
- 2018+ Mercedes-AMG C43 (C205 Coupe)
- 2018+ Mercedes-AMG C43 (A205 Cabriolet)
- M276 3.0L BiTurbo V6 — 385 HP (367 HP pre-facelift)
- Also fits C450 AMG Sport with M276 (see separate listing)
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 full power. For 2019+ models, CPC flash is mandatory alongside the ECU tune. 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 tuning and building AMG engines across every platform. We know the M276 inside and out — the same engine architecture runs in the C43, E43, GLC43, and SLC43. Ships worldwide with free delivery. GCC stock available for same-week dispatch to Kuwait, Saudi Arabia, UAE, Qatar, Bahrain, and Oman.