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

$ 4,326.94
Brand:
EZT Direct Ship from the manufacturer
Ships from the manufacturer
Direct Ship
Shipped directly from the manufacturer to your address. Most orders ship the next business day, subject to manufacturer availability.
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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
$ 4,326.94
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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.

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.

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

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 & Product Support Coverage for manufacturing defects, with help from EZT when you need it.

Eurozone Tuning

  • EZT-Branded Kits: 6 months for repair or replacement due to manufacturing defects. Improper installation, accidents and misuse are excluded.
  • EZT Carbon Edition Steering Wheels: 1 year for workmanship. Physical misuse, harsh-environment damage and improper installation are excluded.

Brakes

  • Brembo: 24-month limited warranty on eligible U.S. purchases from authorized sellers.
  • DFC: 12 months / 12,000 miles, whichever comes first. Licensed professional installation and normal street use are required.
  • PowerStop: Standalone calipers: 90 days / 3,000 miles, whichever comes first. Complete brake-kit coverage varies by product line.
  • SHW Performance: Contact us for the warranty terms applicable to your specific part.
  • Porterfield: Racing and competition parts carry no manufacturer warranty. Contact us about street-pad defect concerns.

Exhaust, Cooling & Fluids

  • AWE: Limited lifetime coverage on exhaust tubing, welds and flex sections. Mechanical valves: 3 years. Valve motors, electronics, catalysts, intakes and intercoolers: 1 year. Tip coverage varies by finish.
  • Milltek: Limited lifetime coverage on eligible exhaust components. Catalysts and downpipes: 2 years / 80,000 km. Electronics: 2 years. Valve-equipped components and other exceptions follow the applicable product and regional terms.
  • ZAC Motorsport: 2 years on standard products. Custom/made-to-order items, wheels and brake components are excluded. Tuning and built drivetrain products have separate terms.
  • CSF: 2-year limited warranty on eligible high-performance cooling products under normal use.
  • Motul: Contact us promptly about leaking, damaged or suspected defective products. Keep the packaging and batch information for review.

Suspension

  • KW: Limited lifetime coverage on eligible street suspension systems. Accessories and other product lines have separate terms.
  • ST: Coilovers: 5 years. Other components have different coverage periods.
  • Eibach: Eligible springs and sway bars: 5 years. Listed shocks, dampers and truck coilovers: 2 years. Listed accessories and wear parts: 1 year. Coverage depends on the product line.
  • Öhlins: Automotive Road & Track: 2 years, excluding finish. Racing applications are excluded.
  • Bilstein: Limited lifetime coverage on many eligible North American products. Certain product lines have shorter terms.
Need to start a claim?

Email support@eurozonetuning.com with your order number, photos or video, mileage since installation and a description of the issue. Keep the product and proof of purchase. Contact us before returning parts.

Coverage is generally for the original purchaser and is subject to inspection and the applicable warranty terms. Normal wear, improper installation, misuse, modifications and racing are commonly excluded. Labor, installation, shipping and related expenses are not covered unless expressly included in the applicable policy.

Mixed-brand kits follow each component manufacturer’s warranty; they do not automatically receive the EZT-branded kit warranty. Product-specific terms, purchase date and region control. This summary does not limit rights provided by applicable law. For brands not listed, contact us for the relevant terms.

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