Mercedes-AMG GLC43 X253 Downpipes — Catless, 200-Cell & 400-Cell | M276 3.0L BiTurbo V6 | 2017–2022
YPG Motorsport downpipes for the Mercedes-AMG GLC43 (X253) replace the restrictive factory catalytic converters on the M276 3.0L BiTurbo V6. The GLC43 shares the same M276 engine as the C43 and E43 — and the same tuning potential. Removing the factory cats unlocks faster spool, sharper throttle response, reduced exhaust gas temperatures, and a significantly more aggressive V6 exhaust note.
When paired with a YPG Stage 2 ECU calibration, the GLC43 delivers approximately 440–460 HP and 500–520 lb-ft of torque — a gain of +55–75 HP over the stock 385 HP. The all-wheel-drive system hooks everything, making the GLC43 one of the fastest SUVs in its segment with the full Stage 2 package.
Compatibility
- 2017–2022 Mercedes-AMG GLC43 SUV (X253)
- 2017–2022 Mercedes-AMG GLC43 Coupé (C253)
- M276 3.0L BiTurbo V6 — 385 HP / 520 Nm
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
- Origin: Made in Germany
- Warranty: Lifetime
What's Included
- 1× pair stainless steel downpipes (catless, 200-cell, or 400-cell per selection)
- All necessary bolts, gaskets, and clamps
Installation
Professional installation recommended. 2–3 hours with lift access. Stage 2 ECU calibration required for CEL elimination and full gains. YPG offers remote ECU flashing worldwide — OBD2 tool shipped to your door, 30–45 minute guided session, fully reversible.
Related M276 Downpipes
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 →
