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2015–2020 Mercedes AMG GT GTS GTR C190 R190 M178 Catless Downpipes
2015–2020 Mercedes AMG GT GTS GTR C190 R190 M178 Catless Downpipes
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Off-road and race use only. Not legal for street use or emissions-controlled vehicles. These performance downpipes are intended for off-road and track applications where permitted by law.
AMG GT / GTS / GTR / GTC Performance Downpipes
Precision engineered for Mercedes M178 Bi-Turbo V8
Designed specifically for the Mercedes-AMG GT platform, these high-flow stainless steel downpipes are built for owners who expect OEM-level fitment, refined sound quality, and uncompromising construction. This catless downpipe design improves exhaust flow and turbo response while preserving the composure and character expected of a premium Mercedes performance vehicle.
Built for Owners Who Expect More Than Aftermarket
These downpipes are engineered specifically for the M178 platform — not adapted from generic designs. Fitment precision, weld consistency, and sound balance are prioritized to meet the expectations of Mercedes performance owners who value refinement alongside measurable performance improvements.
The M178’s hot-V turbo layout demands precise routing within a confined engine bay. These downpipes are engineered with platform-specific bends and clearances to navigate the turbocharger placement cleanly, without compromising fitment or serviceability.
Compatible AMG GT Platforms
- Mercedes-AMG GT (2015+)
- Mercedes-AMG GTS (2015+)
- Mercedes-AMG GTR (2016+)
- Mercedes-AMG GTC (2018+)
Includes left and right downpipes (complete set)
Performance Characteristics
- Improved Exhaust Flow: Reduced restriction compared to factory components
- Enhanced Throttle Response: More immediate turbo response under load
- Refined Exhaust Character: Deeper, composed tone without excessive harshness
- OEM-Style Integration: Direct bolt-on design with no cutting or welding
Construction & Materials
- Material: 304 stainless steel
- Welds: Back-purged TIG welding
- Flanges: CNC-machined for precise sealing
- Tubing: Mandrel-bent 3-inch diameter
Produced in limited batches to maintain consistent quality standards.
Backed by a 12-month structural warranty and a fitment guarantee for listed applications.
Compatible with OEM mounting points and commonly installed by independent European performance shops.
Exhaust Sound Reference
Sound reference showcasing AMG GT models equipped with high-flow M178 downpipes.
“Excellent fitment and build quality. Aggressive under load, composed at cruising speeds — exactly what I wanted.”
— AMG GT Owner
Frequently Asked Questions
Will this trigger a check engine light?
Check engine lights may occur when running catless downpipes without ECU calibration.
Is tuning required?
ECU calibration is recommended to optimize performance and manage emissions-related fault codes.
Is this street legal?
No. These components are intended for off-road and track use only.
Interested in availability or a technical review for your vehicle?
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