• Mercedes-AMG E53, CLS53, and GT53 M256 catless downpipe – stainless high-flow performance exhaust upgrade
  • Precision TIG-welded stainless catless downpipe for Mercedes E53 AMG M256 3.0L turbo inline-6
  • CLS53 AMG M256 catless downpipe kit showing CNC flanges, O₂ bungs, and OEM bolt-on fitment
  • Stainless steel catless downpipe for Mercedes M256 engine — fits E53, CLS53, GT53, GLE53, GLS53
  • GT53 AMG M256 catless downpipe – high-flow exhaust system for improved spool and throttle response
  • Dyno-tested Mercedes E53 AMG downpipe upgrade adding up to 70 HP and 90 lb-ft with proper ECU tune
  • High-flow stainless steel M256 downpipe for Mercedes-AMG GT53, GLE53, CLS53
  • Close-up of TIG welds on Mercedes M256 stainless steel downpipe for AMG performance models
  • Close-up of GLE53 AMG M256 catless downpipe showing O₂ sensor bung and CNC-machined flange
  • catless-downpipe-kit-overview.jpg Mercedes M256 3.0L inline-6 turbo catless downpipe kit – full system overview with welded brackets
  • Flange and inlet detail of Mercedes M256 catless downpipe for E53, CLS53, GT53
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BenzUnited Parts

2019–2023 Mercedes E53 AMG W213 / CLS53 AMG C257 / GT53 AMG X290 M256 Catless Downpipe

2019–2023 Mercedes E53 AMG W213 / CLS53 AMG C257 / GT53 AMG X290 M256 Catless Downpipe

$549.00 USD
$695.00 USD $549.00 USD
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Shipping calculated at checkout.

Off-road and race use only. Not legal for use on emissions-controlled vehicles or public roads. Buyer is responsible for compliance with local laws.

Mercedes E53 • CLS53 • GT53 • GLE53 • GLS53

M256 3.0L Turbo Inline-6 Performance Downpipes

Unlock additional performance from your Mercedes M256 3.0L turbocharged inline-six with these precision-engineered catless downpipes. Designed specifically for E53, CLS53, GT53, GLE53, and GLS53 AMG-line models, they reduce exhaust restriction, improve turbo response, and support higher output when paired with proper ECU calibration.

The M256’s compact turbo layout requires precise routing and clearances. These downpipes are engineered with platform-specific bends and CNC-machined flanges to ensure OEM-level fitment, proper O₂ sensor placement, and long-term reliability under heat.

High-Flow Catless Design
Reduces backpressure to support faster spool and stronger mid-range response. Supports gains of up to ~70 HP / ~90 lb-ft with proper tuning.
Precision OEM-Fit
CNC-machined flanges, TIG-welded stainless construction, and correct O₂ bung placement for true bolt-on installation.
Complete Set
Includes left and right downpipes for a full replacement of factory primary catalytic sections.

⚙️ Verified Compatibility

Model Chassis Years
Mercedes-AMG E53 W213 2019–2025
Mercedes-AMG CLS53 C257 2019–2025
Mercedes-AMG GT53 X290 2019–2025
Mercedes-AMG GLE53 C167 / W167 2020–2025
Mercedes-AMG GLS53 X167 2020–2025

Direct bolt-on for listed M256 applications — no cutting or fabrication required.

🏁 Why Choose BenzUnited Parts

We specialize in Mercedes and AMG performance platforms. Every product is selected with fitment accuracy, durability, and real-world results in mind — not generic aftermarket shortcuts.

  • Mercedes-focused engineering and testing
  • OEM-grade fitment with performance intent
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