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  1. Home
  2. Category- Exhausts
  3. Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System
Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System
Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System
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Load image into Gallery viewer, Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System

Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System

$ 4,046.00
Brand:
Milltek Sport
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Shipping info

Shipping info

Processing Time: If the kit is in stock, allow 1-2 business days lead time before the kit ships.

Special order kits may have a lead time of up to 6 business days.

Custom built items have a lead time of 2 to 5 weeks in most circumstances.

Availability: Worldwide shipping is available for most items.

Airbags can only be shipped within the Continental US.

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Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System
$ 4,046.00
  • Description
  • Bill's Take
  • Warranty
Description
EZT Logo

Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System

Cat-Back, Valved, OPF/GPF Compatible for Mercedes-AMG GT / GTS / GTC. Verify fitment by part number before ordering.

Overview

This listing is for a Milltek Sport Cat-Back, Valved, OPF/GPF Compatible intended for Mercedes-AMG GT / GTS / GTC. Use this upgrade to improve exhaust flow and refine tone while keeping an OEM+ fit and finish.

Brand: Milltek Sport System: Cat-Back, Valved, OPF/GPF Compatible Part No: SSXMZ163, MSMZ136, MSMZ137, MSMZ138, MSMZ139, MSMZ140
Fitment Confirmation
Exhaust fitment is specific to engine, chassis, model year, and emissions equipment. If you are unsure, message us your vehicle year, make, model, trim, and VIN so we can confirm the correct Milltek part number.
Key Features
  • Direct-fit system designed for the listed vehicle platform
  • Configuration options may include resonated, non-resonated, and valved variants depending on the part number
  • Professional fitment and alignment for tip position and clearance
  • Intended for off-road or motorsport use where applicable, verify your local regulations
System Details

System Type

Cat-Back, OPF/GPF Compatible

Sound and Valves

Valved system retains factory valve control where applicable.

Important: OPF and GPF equipped vehicles require the correct OPF back or GPF back specification where applicable. Always match your emissions equipment when choosing an exhaust.

Fitment and Compatibility
  • Platform: Mercedes-AMG GT / GTS / GTC
  • Confirm by: Milltek part number and your VIN based build specification
  • Notes: If your vehicle has additional sensors or different rear valance, confirm before ordering
Before You Order
Send us your VIN and current exhaust setup details and we will confirm compatibility and avoid ordering the wrong system.
Installation Notes
  • Professional installation recommended
  • Allow the system to heat cycle and re-torque fasteners after initial driving
  • Ensure clearance around heat shields, driveline, and rear valance
  • For valved systems, verify actuator alignment and wiring routing
Shipping and Returns

Shipping timing depends on supplier availability for your part number. If you need an ETA before ordering, contact us via live chat.

Returns are subject to our standard policy. Test-fit or installed exhaust components may not be returnable. Confirm part numbers before ordering.

Original Product Notes

 

Mercedes-AMG GT / GTS / GTC Valved Cat-Back Exhaust System

Active H-Pipe | Non-OPF/GPF Models | 2015–2019

System Number: SSXMZ163
Condition: New

Product Overview

This valved cat-back exhaust system with Active H-Pipe is engineered for Mercedes-AMG GT, GTS, and GTC Coupe & Roadster models equipped with the 4.0L V8 Biturbo and non-OPF/GPF exhaust configuration. Designed to enhance exhaust flow, sound balance, and overall driving engagement, the Active H-Pipe improves scavenging while delivering a deeper, more aggressive exhaust note.

The valved design allows controlled exhaust volume, maintaining refinement during normal driving and opening up under load for maximum sound and performance.

Key Features

  • Valved cat-back exhaust system

  • Active H-Pipe center section for improved exhaust balance

  • Designed for non-OPF/GPF vehicles only

  • Enhanced exhaust tone and flow

  • Direct bolt-on replacement for the factory system

Vehicle Compatibility

  • Mercedes-AMG GT Coupe & Roadster

  • Mercedes-AMG GTS Coupe & Roadster

  • Mercedes-AMG GTC Coupe & Roadster

  • Model years: 2015–2019

  • Non-OPF/GPF models only

Included Components

  • MSMZ136 (x2) – Front Adapters to OE

  • MSMZ137 – Active H-Pipe Centre Section

  • MSMZ138 – Left-Hand Valved Section

  • MSMZ139 – Right-Hand Valved Section

  • MSMZ140 – Rear Silencer

Technical Specifications

  • Pipe Diameter: 3.00" (76.20 mm)

  • System Type: Valved cat-back with Active H-Pipe

  • Estimated Fitting Time: 2.0–3.0 hours (including removal of OE system)

Notes

  • Compatible only with non-OPF/GPF AMG GT models

  • Professional installation recommended

  • Retains factory exhaust valve functionality

Bill's Take
Milltek’s fitment and sound quality are always on point. The quad GT90 polished tips really elevate the rear end of the Defender—aggressive but refined.
Warranty
  • Eurozone Tuning Branded Kits: These kits come with a 6-month warranty that covers replacement or repair due to manufacturing defects. Damage from improper installation, accidents, or misuse is not covered.
  • EZT Carbon Edition Steering Wheels: The EZT Carbon Edition steering wheels come with a 1-year warranty for workmanship. This warranty excludes damage caused by physical misuse, harsh environments, or improper installation.
  • Porterfield Brakes: Porterfield offers no warranty for brake pads due to the nature of the part.
  • AWE Tuning Products: AWE Tuning offers a lifetime warranty on their exhausts and a one-year warranty on their intakes and intercoolers. The warranty covers craftsmanship and materials under normal usage conditions. Abuse, improper installation, and modifications void the warranty.
  • ZAC Motorsports: ZAC Motorsports products are covered by a 2-year limited warranty. The warranty covers defects in materials and manufacturing, but does not include damage due to racing, misuse, or improper installation.
  • Motul Oils: Motul products come with a limited warranty that covers the shelf life and quality of the oil when used as directed. Warranty claims must be accompanied by proper documentation of vehicle usage and oil change intervals.
  • KW Coilovers: KW suspensions come with a limited lifetime warranty on their coilovers. This warranty is valid for the original purchaser and covers defects in workmanship and materials. Excludes damages from motorsports or improper installation.
  • ST Coilovers: ST Suspensions offer a 5-year limited warranty on their coilovers. The warranty covers craftsmanship, materials, and normal usage. Improper installation, racing, and modifications are not covered.
  • Eibach Coilovers: Eibach products carry a limited lifetime warranty. This covers defects in materials and workmanship but excludes damages caused by improper installation, racing, or misuse.
  • Öhlins Coilovers: Öhlins coilovers are covered by a 2-year limited warranty. This warranty applies to defects in materials and craftsmanship but excludes damages caused by improper installation or racing applications.
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