BenzUnited Parts
2014–2016 Mercedes E63 AMG W212 / CLS63 C218 M157 RWD Catless Downpipes
2014–2016 Mercedes E63 AMG W212 / CLS63 C218 M157 RWD Catless Downpipes
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High-flow performance downpipes for the Mercedes E63 AMG (W212) and CLS63 AMG (C218), 2012–2016. Designed to improve exhaust flow, reduce backpressure, and unlock deeper AMG exhaust character with OEM-style fitment and drivability.
Compatibility
| Year | Model | Engine |
|---|---|---|
| 2012–2016 | Mercedes E63 AMG / E63 S AMG (W212) | M157 5.5L V8 BiTurbo |
| 2012–2016 | Mercedes CLS63 AMG / CLS63 S AMG (C218) | M157 5.5L V8 BiTurbo |
What You Gain
- Strong performance potential: significant gains with ECU calibration
- Sharper response: reduced exhaust restriction supports quicker turbo spool
- Refined AMG tone: deeper under load without excessive harshness
- Built correctly: TIG-welded 304 stainless steel, direct bolt-on design
ECU calibration is recommended to optimize performance and manage emissions-related fault codes.
Technical Specs
- Material: High-grade 304 stainless steel
- Diameter: 3-inch piping
- Welds: Back-purged TIG welding
- Finish: Brushed or polished — message us before ordering to confirm current batch finish
- Weight savings: approximately 10–15 lbs vs OEM (varies by configuration)
- Install time: typically 2–3 hours (professional installation recommended)
Frequently Asked Questions
Will these downpipes work on the stock tune?
The vehicle may operate without calibration, but ECU tuning is recommended for best drivability and performance optimization.
Will installing these trigger a check engine light?
Check engine lights may occur when running catless downpipes without ECU calibration.
Are these street legal?
No — these components are intended for off-road or closed-course competition use only.
Why Buy from BenzUnited
We focus on Mercedes-Benz performance platforms, supporting AMG and non-AMG applications with platform-aware fitment and enthusiast-level knowledge.
Each set is quality-checked for fitment and designed for OEM-style installation points.
Fast U.S. shipping with tracking and support from people who know the M157 platform inside and out.
Built for owners prioritizing fitment precision, sound quality, and long-term reliability.
Off-road and race use only. Not legal for street use or emissions-controlled vehicles. Intended for closed-course competition or off-road applications where permitted by law.
