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Mercedes W213 E63 AMG E63S Downpipes – M177 Catless Performance Exhaust

Mercedes W213 E63 AMG E63S Downpipes – M177 Catless Performance Exhaust

Regular price $675.00 USD
Regular price $900.00 USD Sale price $675.00 USD
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Catless downpipes for Mercedes-AMG W213 E63 / E63S (M177) — exceptional flow, sharper response, and a deeper tone with OEM-like drivability.

🔊 Real Exhaust Sound


⚙️ Key Benefits

  • +120 HP / +150 lb-ft with ECU tune
  • Quicker spool & reduced lag
  • Lower EGTs from reduced backpressure
  • OEM-fit bolt-on with stock hardware
  • No drone — refined cruise, aggressive WOT

🔧 Compatible Models

  • 2017+ Mercedes-AMG E63 (W213)
  • 2017+ Mercedes-AMG E63S (W213)
🔎 Shop W213 E63 / E63S Performance Upgrades

📊 Specifications

  • Material: 304 Stainless Steel
  • Welds: Back-purged TIG
  • Flanges: CNC-machined
  • Design: Mandrel-bent, OEM-compatible
  • Connections: V-band where appropriate — single-clamp speed, repeatable alignment, and leak-resistant radial seal (great for heat cycles & future service)

🧰 Installation Gallery

Mercedes-AMG W213 E63S transmission removed during downpipe install
Transmission removed for workspace.
Factory catted downpipes removed from W213 E63S M177
OEM catted downpipes out.
Installed catless downpipes on M177 with correct O2 sensor orientation
Correct O₂ sensor orientation.
V-band clamp detail on stainless downpipe of W213 E63 AMG
V-band clamp, leak-resistant seal.
  • Lift car & safely support transmission
  • Remove undertrays & loosen crossmember
  • Unplug O₂ sensors, remove factory pipes
  • Fit catless pipes; verify O₂ routing & V-band seating
  • Torque, reassemble, leak check

Time: ~4–6 hours with a lift. Pro install recommended.

💎 Why BenzUnited

  • Mercedes-focused: OEM+ & AMG performance specialists
  • Proven materials: built for heat & spirited use
  • Enthusiast support: platform-savvy help when you need it

💬 FAQ

Will this trigger a CEL? Yes, unless spaced or tuned out.

Do I need a tune? Not required, recommended for full gains & no CEL.

⚠️ Important Notice

For Off-Road Use Only: Not legal for public roads; closed-course competition use only.

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