Mercedes-Benz W213 E63 Catless Downpipes | YPG Motorsport M177 Swapping to the ROW-spec unit

Swapping to the ROW-spec unit unlocks horsepower the engine was designed to make

2L naturally aspirated V8 — one of the greatest AMG engines ever produced

No workshop visit

Installation time is approximately 2–3 hours

The M157 has a known cylinder scoring issue under high-boost operation

Mercedes-Benz W213 E63 Catless Downpipes | YPG Motorsport M177 Swapping to the ROW-spec unitMercedes Benz W213 E63 Catless Downpipes M177 4. 0L Twin Turbo V8 YPG Motorsport catless downpipes for the Mercedes AMG E63 and E63 S (W213) replace the restrictive factory catalytic converters with full 3. 5 inch mandrel bent stainless steel pipes. The result: significantly reduced backpressure, faster turbo spool, sharper throttle response, and a deeper, more aggressive V8 exhaust note with pronounced burbles and crackles on overrun. On the M177